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The Union Switch Signal Co Polarized Relay Model 12 Pennsylvania Railroad
The Union Switch Signal Co Polarized Relay Model 12 Pennsylvania Railroad

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Union Switch & Signal Co Instruction Pamphlet Manual U-5028 Railroad Signal (j)
Union Switch & Signal Co Instruction Pamphlet Manual U-5028 Railroad Signal (j)

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Brass Copper Honeycomb Phankill Union Switch & Signal Co Railroad Position Light
Brass Copper Honeycomb Phankill Union Switch & Signal Co Railroad Position Light

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Vintage 1948 Era Union Switch & Signal Co Railroad D.C. Neutral Relay Type DN-11
Vintage 1948 Era Union Switch & Signal Co Railroad D.C. Neutral Relay Type DN-11

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Union Switch & Signal Co Instruction Pamphlet Manual U-5021 Railroad Signal (h)
Union Switch & Signal Co Instruction Pamphlet Manual U-5021 Railroad Signal (h)

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1948 Union Switch & Signal Co. Installation & Maintenance Pamphlet U-5425
1948 Union Switch & Signal Co. Installation & Maintenance Pamphlet U-5425

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Union Switch & Signal Co Instruction Pamphlet Manual U-5031 Railroad Signal (l)
Union Switch & Signal Co Instruction Pamphlet Manual U-5031 Railroad Signal (l)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5041 Railroad Signal (q)
Union Switch & Signal Co Instruction Pamphlet Manual U-5041 Railroad Signal (q)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5309 Railroad Signal (e)
Union Switch & Signal Co Instruction Pamphlet Manual U-5309 Railroad Signal (e)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5030 Railroad Signal (k)
Union Switch & Signal Co Instruction Pamphlet Manual U-5030 Railroad Signal (k)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5481 Railroad Signal (a)
Union Switch & Signal Co Instruction Pamphlet Manual U-5481 Railroad Signal (a)

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1894 Union Switch&Signal Co Catalogue, Signaling Railroad, 351 Pages Full Photos
1894 Union Switch&Signal Co Catalogue, Signaling Railroad, 351 Pages Full Photos

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Union Switch & Signal Co Instruction Pamphlet Manual U-5042 Railroad Signal (s)
Union Switch & Signal Co Instruction Pamphlet Manual U-5042 Railroad Signal (s)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5303 Railroad Signal (f)
Union Switch & Signal Co Instruction Pamphlet Manual U-5303 Railroad Signal (f)

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Vintage Union Switch & Signal Co USS Railroad Track Circuit Relay DN-22B
Vintage Union Switch & Signal Co USS Railroad Track Circuit Relay DN-22B

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Union Switch & Signal Co Instruction Pamphlet Manual U-5045 Railroad Signal (v)
Union Switch & Signal Co Instruction Pamphlet Manual U-5045 Railroad Signal (v)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5035 Railroad Signal (n)
Union Switch & Signal Co Instruction Pamphlet Manual U-5035 Railroad Signal (n)

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Vtg. Set of 15 Union Switch & Signal Company Railroad Equipment Photo Prints
Vtg. Set of 15 Union Switch & Signal Company Railroad Equipment Photo Prints

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Union Switch & Signal Co. Swissvale PA Nat'l PC Week 2007 Reproduction Postcard
Union Switch & Signal Co. Swissvale PA Nat'l PC Week 2007 Reproduction Postcard

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Vintage Union Switch and Signal Co. DNL-4 DC Neutral Relay
Vintage Union Switch and Signal Co. DNL-4 DC Neutral Relay

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Union Switch & Signal Co Instruction Pamphlet Manual U-5411 Railroad Signal (d)
Union Switch & Signal Co Instruction Pamphlet Manual U-5411 Railroad Signal (d)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5043 Railroad Signal (t)
Union Switch & Signal Co Instruction Pamphlet Manual U-5043 Railroad Signal (t)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5042 Railroad Signal (r)
Union Switch & Signal Co Instruction Pamphlet Manual U-5042 Railroad Signal (r)

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Union Switch & Signal Co's Foundries, Swissvale, Pittsburg PA Vintage Postcard
Union Switch & Signal Co's Foundries, Swissvale, Pittsburg PA Vintage Postcard

$6.95

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Vintage Union Switch & Signal Co. Railroad ORP-60 Overload Relay Last Dated 1953
Vintage Union Switch & Signal Co. Railroad ORP-60 Overload Relay Last Dated 1953

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Union Switch & Signal Co Instruction Pamphlet Manual U-5411 Railroad Signal (c)
Union Switch & Signal Co Instruction Pamphlet Manual U-5411 Railroad Signal (c)

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Railway Union Switch & Signal Co Style CD - D.C. Code Following Relay Date 1964
Railway Union Switch & Signal Co Style CD - D.C. Code Following Relay Date 1964

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Railroad RR Telegraph Union Switch & Signal Co Relay D.C. Neutral Flasher DN-11
Railroad RR Telegraph Union Switch & Signal Co Relay D.C. Neutral Flasher DN-11

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NEW Union Switch And Signal Co Swissvale Pa Logo T-Shirt Unisex Trending S-5XL
NEW Union Switch And Signal Co Swissvale Pa Logo T-Shirt Unisex Trending S-5XL

$16.99

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Railroad Terminal Union Switch Signal Co. Railroad Light Control Switch 1940s
Railroad Terminal Union Switch Signal Co. Railroad Light Control Switch 1940s

$275.00

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Vintage Union Switch & Signal Co. Railroad Track Circuit Relay 1940
Vintage Union Switch & Signal Co. Railroad Track Circuit Relay 1940

$97.50

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Union Switch & Signal Co Instruction Pamphlet Manual U-5036 Railroad Signal (o)
Union Switch & Signal Co Instruction Pamphlet Manual U-5036 Railroad Signal (o)

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Vintage Railroad 1947 Union Switch & Signal Company - Calendar Notepad Note Pad
Vintage Railroad 1947 Union Switch & Signal Company - Calendar Notepad Note Pad

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Vintage Railroad 1938 Union Switch & Signal Company Calendar Notepad
Vintage Railroad 1938 Union Switch & Signal Company Calendar Notepad

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Union Switch & Signal Co. Instruction Pamphlet U-5410 Style CP Switch Valve 1940
Union Switch & Signal Co. Instruction Pamphlet U-5410 Style CP Switch Valve 1940

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VTG Union Switch & Signal Co Model 13 Relay Pennsylvania Rail Road Railroad
VTG Union Switch & Signal Co Model 13 Relay Pennsylvania Rail Road Railroad

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Union Switch & Signal Co Instruction Pamphlet Manual U-5026 Railroad Signal (i)
Union Switch & Signal Co Instruction Pamphlet Manual U-5026 Railroad Signal (i)

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Union Switch & Signal Co Instruction Pamphlet Manual U-5043 Railroad Signal (u)
Union Switch & Signal Co Instruction Pamphlet Manual U-5043 Railroad Signal (u)

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NEW Union Switch And Signal Co Swissvale Pa Logo T-Shirt Unisex Trending S-5XL
NEW Union Switch And Signal Co Swissvale Pa Logo T-Shirt Unisex Trending S-5XL

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RPPC Union Switch & Signal Co SWISSVALE PA Allegheny County Real Photo Postcard
RPPC Union Switch & Signal Co SWISSVALE PA Allegheny County Real Photo Postcard

$24.99

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Automatic Train Control & Stops Union Switch & Signal Co (July 1931)
Automatic Train Control & Stops Union Switch & Signal Co (July 1931)

$19.99

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Union Switch & Signal Co Instruction Pamphlet Manual U-5417 Railroad Signal (b)
Union Switch & Signal Co Instruction Pamphlet Manual U-5417 Railroad Signal (b)

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Union Switch & Signal, US & S co. Railroad Train Signal Light ( Electrified )
Union Switch & Signal, US & S co. Railroad Train Signal Light ( Electrified )

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1944 Union Switch & Signal Co. Pocket Calendar Card wallet Railroad Train RR
1944 Union Switch & Signal Co. Pocket Calendar Card wallet Railroad Train RR

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Vtg Union Switch & Signal Co Railroad Train Track Circuit Relay DN-22A RARE
Vtg Union Switch & Signal Co Railroad Train Track Circuit Relay DN-22A RARE

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1930 The Old RR Depot, Union Switch & Signal Westinghouse Air Brake Co. Print
1930 The Old RR Depot, Union Switch & Signal Westinghouse Air Brake Co. Print

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Railroad Union Switch & Signal Co Position / Signal Light Box Cast Iron Spacer
Railroad Union Switch & Signal Co Position / Signal Light Box Cast Iron Spacer

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Union Switch & Signal Co Swissvale PA Instruction Pamphlet U-5031 Feb 1931
Union Switch & Signal Co Swissvale PA Instruction Pamphlet U-5031 Feb 1931

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Vintage Union Switch & Signal Co. Transformer Type NA Spec. 939
Vintage Union Switch & Signal Co. Transformer Type NA Spec. 939

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1940 cover Union Switch & Signal Co NY USS perin on Scott 811 prexy & 891 stamp
1940 cover Union Switch & Signal Co NY USS perin on Scott 811 prexy & 891 stamp

$5.00

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Union Switch & Signal Co. Swissvale PA Nat'l PC Week 2006 Reproduction Postcard
Union Switch & Signal Co. Swissvale PA Nat'l PC Week 2006 Reproduction Postcard

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Two Vintage Union Switch & Signal Co. Instruction Pamphlets U-5407 March 1950
Two Vintage Union Switch & Signal Co. Instruction Pamphlets U-5407 March 1950

$12.99

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Interlocking A & B Switch & Signal Location Plan, Denver Union Terminal Railway
Interlocking A & B Switch & Signal Location Plan, Denver Union Terminal Railway

$49.95

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POSTCARD UNION SWITCH & SIGNAL COMPANY SWISSVALE PENNSYLVANIA
POSTCARD UNION SWITCH & SIGNAL COMPANY SWISSVALE PENNSYLVANIA

$5.58

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Union Switch & Signal Co Railroad Track Circuit Relay DC Neutral Biased DN-11
Union Switch & Signal Co Railroad Track Circuit Relay DC Neutral Biased DN-11

$20.00

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SWISSVALE PA UNION SWITCH & SIGNAL CO'S OFFICES 1908 ANTIQUE POSTCARD
SWISSVALE PA UNION SWITCH & SIGNAL CO'S OFFICES 1908 ANTIQUE POSTCARD

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Postcard Swissvale PA Office and Shops of Union Switch and Signal Co. 1913
Postcard Swissvale PA Office and Shops of Union Switch and Signal Co. 1913

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1943 Union Switch & Signal Co. Pocket Calendar Card wallet Railroad Train RR
1943 Union Switch & Signal Co. Pocket Calendar Card wallet Railroad Train RR

$10.00

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1929 Charts of the Pneumatic Equipment of the Union Switch & Signal Co's
1929 Charts of the Pneumatic Equipment of the Union Switch & Signal Co's

$25.00

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Vintage Union Switch and Signal Co. DNL-4 DC Neutral Relay Glass Damage
Vintage Union Switch and Signal Co. DNL-4 DC Neutral Relay Glass Damage

$22.49

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1907 The Union Switch & Signal Co railroad RR Swissville PA Pennsylvania
1907 The Union Switch & Signal Co railroad RR Swissville PA Pennsylvania

$7.08

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KP Relay Rack Union Switch & Signal Co. 16-Contact Clean! 1947 Insp. PC217122
KP Relay Rack Union Switch & Signal Co. 16-Contact Clean! 1947 Insp. PC217122

$114.99

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1946 RAILROAD PRINT AD UNION SWITCH & SIGNAL COMPANY SWISSVALE PENNSYLVANIA
1946 RAILROAD PRINT AD UNION SWITCH & SIGNAL COMPANY SWISSVALE PENNSYLVANIA

$9.24

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SWISSVALE PITTSBURGH PA UNION SWITCH & SIGNAL CO. WORKS USED 1910
SWISSVALE PITTSBURGH PA UNION SWITCH & SIGNAL CO. WORKS USED 1910

$7.99

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Working 1962 Union Switch & Signal Co. Swissvale, PA. Style DM Code Transmitter
Working 1962 Union Switch & Signal Co. Swissvale, PA. Style DM Code Transmitter

$150.00

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Vintage Union Switch & Signal Co USS Railroad Track Relay Model 18
Vintage Union Switch & Signal Co USS Railroad Track Relay Model 18

$79.99

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The Union Switch & Signal Co SLV-13 Vane Line Relay Railroad Railway Train 4F-4B
The Union Switch & Signal Co SLV-13 Vane Line Relay Railroad Railway Train 4F-4B

$175.00

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Vintage Union Switch & Signal Railroad Relay DN11 Original RAIL COLLECTIBLE
Vintage Union Switch & Signal Railroad Relay DN11 Original RAIL COLLECTIBLE

$54.99

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Reed & Barton Louis XVI Silver-Plated Flatware Set Union Switch & Signal Co 1924
Reed & Barton Louis XVI Silver-Plated Flatware Set Union Switch & Signal Co 1924

$150.00

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SINGLE-TRACK BOTTLENECKS UNION SWITCH & SIGNAL COMPANY - 1946 RAILROAD PRINT AD
SINGLE-TRACK BOTTLENECKS UNION SWITCH & SIGNAL COMPANY - 1946 RAILROAD PRINT AD

$12.24

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Railway Union Switch & Signal Co Style CD DC Code Following Relay Swissvale Pa
Railway Union Switch & Signal Co Style CD DC Code Following Relay Swissvale Pa

$120.00

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U-5036 Adjustments Tests of A.C. Relays, Instruction Pamphlet- Union Switch 1938
U-5036 Adjustments Tests of A.C. Relays, Instruction Pamphlet- Union Switch 1938

$19.95

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2x 1920's Westinghouse Locomotive Brake Equipment & Union Switch Signal Co Chart
2x 1920's Westinghouse Locomotive Brake Equipment & Union Switch Signal Co Chart

$9.95

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Vintage Union Switch & Signal Co. Railroad Track Circuit Relay - Labeled 1938
Vintage Union Switch & Signal Co. Railroad Track Circuit Relay - Labeled 1938

$59.99

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June 1938 cover Union Switch & Signal Co NY to The Reading Co Terminal Phila
June 1938 cover Union Switch & Signal Co NY to The Reading Co Terminal Phila

$5.00

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Vintage Union Switch and Signal Co. Union Rectifier RS TA-104
Vintage Union Switch and Signal Co. Union Rectifier RS TA-104

$14.98

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1928 Union Switch & Signal Co. Instruction Pamphlet U-5020 Rectifiers Vintage
1928 Union Switch & Signal Co. Instruction Pamphlet U-5020 Rectifiers Vintage

$17.95

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The Union Switch B. Signal Company 2M --RAILROAD SWITCH--SWISSVALE P.A.
The Union Switch B. Signal Company 2M --RAILROAD SWITCH--SWISSVALE P.A.

$250.00

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1929 Charts of the Pneumatic Equipment of the Union Switch & Signal Co's
1929 Charts of the Pneumatic Equipment of the Union Switch & Signal Co's

$29.00

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Vintage Union Switch & Signal Railroad SIGNAL RELAY DN-22A Original RAIL RARE
Vintage Union Switch & Signal Railroad SIGNAL RELAY DN-22A Original RAIL RARE

$49.99

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Vintage Union Switch and Signal Company Railroad Relay Swissvale PA. 1000ohm
Vintage Union Switch and Signal Company Railroad Relay Swissvale PA. 1000ohm

$60.00

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Vintage WABCO DC STYLE H-5 SIGNAL UN 210705 500 OHM, RED, AMBER, GREEN
Vintage WABCO DC STYLE H-5 SIGNAL UN 210705 500 OHM, RED, AMBER, GREEN

$149.99

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Union Switch & Signal Co. CDP Style D.C. Code Following Relay
Union Switch & Signal Co. CDP Style D.C. Code Following Relay

$229.99

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Postcard Photograph Union Switch & Signal Co. Bldg. Swissvale, Pittsburg, PA
Postcard Photograph Union Switch & Signal Co. Bldg. Swissvale, Pittsburg, PA

$6.50

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1950 Union Switch & Signal Company Cut Your Operating Costs Train ad
1950 Union Switch & Signal Company Cut Your Operating Costs Train ad

$9.99

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Rare Union Switch & Signal Co Railroad Yellow Light Cast Iron with Bracket!
Rare Union Switch & Signal Co Railroad Yellow Light Cast Iron with Bracket!

$349.99

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Vintage 1952 Union Switch & Signal Company Railroad Switcher Train ad
Vintage 1952 Union Switch & Signal Company Railroad Switcher Train ad

$9.99

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GUN CUSTOM CASE TRADE LABEL for U.S .& S. UNION SWITCH AND SIGNAL CO. m1911 A1
GUN CUSTOM CASE TRADE LABEL for U.S .& S. UNION SWITCH AND SIGNAL CO. m1911 A1

$65.00

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Pennsylvania PA postcard Swissvale Union Switch and Signal Company reproduction
Pennsylvania PA postcard Swissvale Union Switch and Signal Company reproduction

$3.49

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antique electric motor railroad motor switch Union Switch Co. antique dynamo
antique electric motor railroad motor switch Union Switch Co. antique dynamo

$1199.99

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Union Switch & Signal Company Railroad Track overload relay or-11
Union Switch & Signal Company Railroad Track overload relay or-11

$100.00

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Union Switch & Signal Company Railroad Track Circuit Relay DN-22 P
Union Switch & Signal Company Railroad Track Circuit Relay DN-22 P

$199.00

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UNION SWITCH & SIGNAL CO WORKS~SWISSVALE,PITTSBURGH,PA -PM 1910
UNION SWITCH & SIGNAL CO WORKS~SWISSVALE,PITTSBURGH,PA -PM 1910

$5.03

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Vintage USS DC STYLE H-5 SIGNAL UN 245125 (RED RING) 500 OHM, RED, AMBER, GREEN
Vintage USS DC STYLE H-5 SIGNAL UN 245125 (RED RING) 500 OHM, RED, AMBER, GREEN

$149.99

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Vintage 1953 Union Switch & Signal Company The Right Switch Machine Train ad
Vintage 1953 Union Switch & Signal Company The Right Switch Machine Train ad

$9.99

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Vintage 1929 Automatic Train Control Systems Union Switch & Signal Co.
Vintage 1929 Automatic Train Control Systems Union Switch & Signal Co.

$26.99

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Vtg Lot Of 12 Railroad Union Switch & Signal Co Pocket Calendars 1948-1964
Vtg Lot Of 12 Railroad Union Switch & Signal Co Pocket Calendars 1948-1964

$40.00

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Sidney G Johnson A Salesman For Union Switch Signal Co Accused Att Old Photo
Sidney G Johnson A Salesman For Union Switch Signal Co Accused Att Old Photo

$5.82

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Bulletin, Issues 12-47 by Union Switch And Signal Company, Union Switch And S...
Bulletin, Issues 12-47 by Union Switch And Signal Company, Union Switch And S...

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