| 1961 NAT MALLEABLE STEEL CASTINGS Draft Buffing Gear |
| 1961 US NAT BANK OF PORTLAND Fishing Rod Holder |
| 1961 NAT Continuous Poultry Feeder Patent Print |
| 1961 NAT CAR Mounting Railway Freight Containers |
| 1961 NAT Draft Rigging Railway Vehicles Art |
| 1961 NAT CASTINGS CO Coupling Device Patent |
| 1961 NAT LEAD CO Journal Stop Mechanism Patent |
| 1961 NAT CASTINGS CO Cushioning Mechanism Patent |
| 1961 NAT Lubricating Pad Railway Journal Bearings |
| 1961 NAT CASTINGS CO Car Coupler Patent Print |
| 1961 NAT Transitional Coupling Art Print Patent |
| 1961 NAT MALLEABLE STEEL CASTINGS Car Truck Art |
| 1961 NAT ACCESSORIES INC Dragging Equipment Detector |
| 1961 CANADIAN NAT RAILWAY Side Openings Box Cars |
| 1961 NAT CASTINGS CO Railway Car Underframe Arrangement |
| 1961 CANADIAN NAT RAILWAY Pulpwood Transportation Cars |
| 1961 JAZZ - edited by Nat Hentoff & Albert J. McCarthy |
| JAPAN 1961 #739 Nat'l Diet Library issue FDC |
| KOREA 1961 #326 Nat'l Mourning Day issue FDC |
| JAPAN 1961 #724 South-Boso Nat'l Pk issue FDC |
| JAPAN 1961 #734 Onuma Nat'l Pk issue FDC |
| 1961 JAZZ - edited by Nat Hentoff & Albert J. McCarthy |