| 1952 COOK ELECTRIC CO Altitude Warning Signal System |
| 1929 JOHN LONG Electric Railway Signal Lantern |
| 1930 FRANK Electric Signal Bell Patent Print Art |
| 1930 ELECTRIC SIGNAL LTD Signal Art Print |
| 1940 RUSSELL Electric Signal Toy Railways Patent |
| 1933 MAX Electric Horn Other Acoustic Signal Producer |
| 1921 BAGNELL Electric Signal Switch Patent Print |
| 1932 CHARLES LEFCHICK Electric Signal Switch |
| 1938 GAYNOR Audible Electric Signal Patent Print |
| 1968 LAWLOR Electric Signal Flare Patent 21020 |
| 1925 WESTERN ELECTRIC CO Signal System Patent |
| 1924 WARREN Electric Signal Device Patent Print |
| 1935 SCHWARZE ELECTRIC Audible Signal Art Print |
| 1926 REIGH Electric Signal Lamp Railway Switches |
| 1951 ALL AMERICAN NOVELTY I Electric Signal Switch |
| 1933 HOLTZER CABOT ELECTRIC Signal Art Print |
| 1930 ANTHONY Electric Signal Switch Art Print |
| 1956 MCGRAW ELECTRIC CO Signal Light Projector |
| 1935 GEN ELECTRIC Railway Signal System Patent |
| 1938 SCHWARZE ELECTRIC Chime Signal Art Print |
| 1930 CHARLES LEFCHICK Electric Signal Switch |
| 1921 HIELSCHER Clock Controlled Electric Signal System |
| 1876 ANDERS Electric Railway Signal Patent 9637 |
| 1929 THOMAS Electric Signal System Patent Print |
| 1930 STANLEY PATTERSON INC Electric Signal Bell |
| 1929 WESTINGHOUSE AIR BRAKE CO Electric Signal System |
| 1922 CRAWFORD Electric Signal Electric Railways |
| 1932 ANTHONY Electric Signal Switch Art Print |
| 1936 CARL Audible Electric Signal Patent Print |
| 1925 NORTH EAST ELECTRIC Signal Horn Art Print |
| 1957 MCGRAW ELECTRIC CO Light Signal Projector |
| 1936 FRANCISCO TOSCANO Electric Signal Patent |
| 1942 SCHWARZE ELECTRIC COMPANY Signal Patent |
| 1858 GARDINER Electric Signal Light Patent 8367 |
| 1932 E Synchronous Motor Electric Audible Signal Clock |
| 1924 HOLTZERCABOT ELECTRIC Electric Signal Art |
| 1951 JOHN Electric Signal Switch Patent Print |
| 1921 HAZAZER EDGAR Electric Signal Patent Print |
| 1936 SIGNOR Electric Flare Signal Patent Print |
| 1947 ZUCKERMAN Electric Chime Signal Patent |
| 1931 E Synchronous Motor Electric Audible Signal Clock |
| 1929 OTTO Electric Railway Signal Lantern Patent |
| 1960 SMITH Electric Signal Device Patent Print |
| 1937 GEN ELECTRIC Signal System Patent Print Art |
| 1931 RICHTERKESSING Electric Signal System Art |
| 1924 FRANKLIN Electric Railway Signal Patent |
| 1933 ELECTRIC STORAGE BATTERY CO Railway Signal System |
| 1958 GEROSOLINA Magnetic Throw Dart Electric Signal |
| 1936 SECO MFG COMPANY Electric Flare Signal Art |
| 1924 SCHIRMER CYRUS Electric Signal Patent Print |
| 1931 CHEATHAM Electric Signal System Art Print |
| Electric Wood Model Railroad Stop Go Signal Light 11" |
| Western Electric Signal Corp Coil Set C-383 Transmitter |
| HORNBY DUBLO ED1 Electric Home Signal (Boxed) |
| HORNBY DUBLO Electric Home Signal OO/HO scale |
| HORNBY DUBLO Electric Distant Signal OO/HO scale |
| HORNBY DUBLO Electric Double Signal OO/HO scale |
| HORNBY DUBLO Electric Double Signal OO/HO scale Boxed |
| HORNBY DUBLO Electric Junction Home Signal OO/HO scale |
| Vintage Electric Fan "Cool Spot" by Signal |
| VINTAGE*ELECTRIC FAN*1941 SIGNAL w/Cast Iron Base Works |
| Vintage TRIANG OO TRIX electric signal Hornby kit |
| Vintage TRIANG OO TRIX electric signal Hornby kit |
| Marklin Z 8945 Universal Relay & Electric Signal 8939 |
| No. 69 ELECTRIC WARNING SIGNAL------ORIGINAL |
| G-SCALE NEW 3-LIGHT WORKING ELECTRIC TRAIN SIGNAL |
| 1952 North Electric TP-6-A Signal Corps Phone - Works |
| 1924 GE GENERAL ELECTRIC TRAFFIC SIGNAL LIGHT IN NYC AD |