| 1949 TRANSIT Bolster Construction Ventilation System |
| 1960 PULLMAN Welded Bolster Construction Art |
| 1921 LARSEN Bolster Construction Six Wheel Trucks |
| 1935 ENTPR RAILWAY EQUIPMENT CO Bolster Construction |
| 1929 BUCKEYE Car Truck Bolster Construction Art |
| 1935 STERTZBACH Body Bolster Construction Patent |
| 1946 HICKMAN Bolster Construction Railroad Trucks |
| 1932 DOERR Bolster End Construction Patent Print |
| 1929 INT MOTOR CO Body Bolster Construction Art |
| 1929 ANDERSON Body Bolster Construction Patent |
| 1958 PULLMAN Welded Bolster Construction Art |
| 1958 PULLMAN Vehicle Bolster Construction Art |
| 1960 CANDLIN Welded Bolster Construction Patent |
| 1958 PETERSON Vehicle Bolster Construction Art |
| 1929 STERTZBACH Car Truck Bolster Construction |
| 1921 BUCKEYE Bolster Construction Six Wheel Trucks |
| 1949 EDWARD Bolster Construction Ventilation System |
| 1935 RUDOLPH Bolster Construction Patent Print |
| 1958 BOESE Welded Bolster Construction Patent |
| 1935 BUCKEYE Body Bolster Construction Art Print |
| 1946 DEAN Bolster Construction Rail Car Underframes |
| 1935 ARGYLE Bolster Construction Patent Print |
| 1935 RADIO STEEL CO Bolster Construction Art |
| 1946 BUDD Bolster Construction Rail Car Underframes |
| 1932 SCULLIN STEEL Bolster End Construction Art |