| 1923 JOHNSTON Cocking Mechanism Automatic Machine Guns |
| 1923 JOHNSTON Standard For Machine Guns Patent |
| 1923 VICKERS LTD Mounting Small Caliber Guns Art |
| 1923 JOHNSTON Cartridge Feeding Mechanism Machine Guns |
| 1923 VICKERS LTD Aiming Tube Adapter Quick Firing Guns |
| 1923 SCHNEIDER CIE Closing Guns Having Multiple Barrels |
| 1923 JOHNSTON Cartridge Magazine Machine Guns |
| 1923 EDWARDS Fire Control Means Aircraft Machine Guns |
| 1923 PAULUS Charging Machine Guns Art Print |
| 1923 US ORDNANCE Attachment Gas Operated Guns |
| 1923 SIEMENS AG Teleadjuster Guns Like Art Print |
| 1923 TREVOR Aiming Tube Adapter Quick Firing Guns |
| 1923 SCHNEIDER CIE Firing Mechanism Guns Art |
| 1923 HENRY Mounting Small Caliber Guns Art Print |
| 1923 JOHNSTON Actuator For Machine Guns Patent |
| 1923 BAILY Ventilated Hand Protector Guns Art |
| 1923 TREVOR Turret Mounting Heavy Guns Art Print |
| 1923 PAUL Teleadjuster Guns Like Art Print |
| 1923 VICKERS LTD Turret Mounting Heavy Guns Art |
| 1923 EUGENE Closing Guns Having Multiple Barrels |
| 1923 EUGENE Firing Mechanism For Guns Patent |
| 1923 GREEN Attachment Gas Operated Guns Art |
| 1923 PAUL Flash Light Attachment For Guns Patent |
| 1923 GORTON Operating Slide Handle Machine Guns |