| 1921 DORN IRON WORKS VAN Tail Gate Latch Art |
| 1921 OELENSCHLAGER Safety Gate Railroad Crossings |
| 1921 DMITRO HRYNIEWICH Railroad Gate Patent |
| 1921 ANTHONY GARCIA Gate Patent Print Art |
| 1921 CLAY STEPHENS End Gate And Chute Patent |
| 1921 MCGEE Automatic Railway Gate Patent Print |
| 1921 BARTHOLOMEW BERT Railroad Gate Patent Print |
| 1921 ELLA Time Controlled Dam Gate Patent Print |
| 1921 JONES Railroad Crossing Gate Patent Print |
| 1921 HERMAN Gate For Dumping Trucks Patent Print |
| 1921 IOWA GATE COMPANY Stall Construction Patent |
| 1921 GEORGE Automatic Safety Gate Railway Crossings |
| 1921 ERNST Gate Operating Mechanism Patent Print |
| 1921 BARKER PERCY Tail Gate Latch Patent Print |
| 1921 SPURLOCK THEADORE Railway Gate Patent Print |
| 1921 GLEN End Gate Operating Mechanism Patent |
| 1921 FRANK Automatic Railroad Gate Patent Print |
| 1921 COCIU Automatic Safety Gate Railway Crossings |
| 1921 GOLDEN GATE BRIDGE ELONGATED Coin CAL-GGB-7c |
| UK 1921 Artist Signed Postcard CANTERBURY WEST GATE |