| 1942 BOGARD Drop Bottom Mine Car Patent Print |
| 1935 SANFORD HUGH Low Bottom Car Patent Print |
| 1937 DIETRICHSON Drop Bottom Mine Car Patent |
| 1938 DUNCAN ED Drop Bottom Car Patent Print Art |
| 1951 SHIELDS Drop Bottom Mine Car Patent Print |
| 1955 RAGNAR BERG Bottom Dump Car Patent Print |
| 1946 BENBOW Hopper Bottom Car And Trailer Patent |
| 1931 HENRY Drop Bottom Mine Car Patent Print Art |
| 1907 MALTEY Drop Bottom Dump Car Patent 11989 |
| 1944 CATE THOMAS Drop Bottom Mine Car Patent |
| 1935 VICTOR Drop Bottom Mine Car Patent Print |
| 1949 TILLMAN Flat Bottom Gondola Car Patent |
| 1941 BENBOW JAMES Hopper Bottom Car Patent Print |
| 1948 SHIELDS Drop Bottom Mine Car Latch Patent |
| 1944 PANCAKE Drop Bottom Mine Car Patent Print |
| 1911 OTIS Drop Bottom Dump Car Patent 11986 |
| 1926 FORREST Drop Bottom Dump Car Patent Print |
| 1952 BOYD Drop Bottom Mine Car WATT Patent 48576 |
| 1950 EARL BOWEN Drop Bottom Mine Car Patent |
| 1957 SHIELDS Drop Bottom Mine Car Patent Print |
| 1941 KEPNER High Capacity Drop Bottom Car Patent |
| 1950 EMPIRE IND INC Drop Bottom Mine Car Patent |
| 1951 SWANN Drop Bottom Gondola Car Door Patent |