| 1931 KARL HEINEMANN Automatic Firearm Patent |
| 1931 JOSEPH DESTREE Firearm Patent Print Art |
| 1931 EDMUND BROWNING Automatic Firearm Patent |
| 1931 LOOMIS CRAWFORD Firearm REMINGTON ARMS INC |
| 1931 AUTO ORDNANCE CORP Firearm Patent Print Art |
| 1931 ABIEL Automatic Firearm Actuated By Compressed Air |
| 1931 PEDERSEN JOHN Firearm Patent Print Art |
| 1931 DYGERT CHARLES Firearm REMINGTON ARMS INC |
| 1931 BIERBAUM CHRISTOPHER Firearm Patent Print |
| 1931 FRANCISCO MINONDO Firearm Patent Print Art |
| 1931 J E BROWNING Automatic Firearm Art Print |
| 1931 RHEINISCHE METALLW MASCHF Automatic Firearm |
| 1931 GEORGE E PETERS Repeating Firearm Patent |
| 1931 BURTON FRANK Breakdown Firearm Patent Print |
| 1931 REMINGTON ARMS CO INC Firearm Patent Print |
| 1931 CHRISTIAN Automatic Firearm Patent Print |
| 1931 DICKINSON Automatic Firearm Patent Print |
| 1931 LOUIS STANGE Automatic Firearm Patent Print |
| 1931 EARL MCCOY Firearm Patent Print Art |
| 1931 EMANUEL Firearm Art Print Patent |
| 1931 VON FROMMER Automatic Firearm Patent Print |
| 1931 PIERRE Firearm Art |