| AMERICAN SOCIETY NAVAL ENGINEERS PIN / BUTTON |
| OLD Railway Engineers 31st of the A.E.F. Button Pin |
| Disney Railroad Train Engineers Pooh Tigger Piglet Pin |
| NATIONAL ASSOC. OF STATIONARY ENGINEERS LAPEL PIN |
| Vintage Brotherhood of Locomotive Engineers 25 Year Pin |
| Operating Engineers Local 115 Trade Union Pin&Key Chain |
| 2 Vintage 1971 & 1943 Engineers Union Pin Pins |
| SMALL RAILROAD ENGINEERS UNION METAL LAPEL PIN |
| Refrigeration Service Engineers Society Cer. Member pin |
| Vintage Brotherhood of Locomotive Engineers 25 Year Pin |
| LYNDON JOHNSON SCIENTISTS, ENGINEERS ATOM PIN |
| VINTAGE GOLD MILITARY ENGINEERS LAPEL PIN |
| VINTAGE MILITARY ENGINEERS LAPEL PIN |
| US Army Corps of Engineers pin insignia set of 2 |
| Military US Army Corps of Engineers - tin button pin |
| NAVAL ENGINEERS Lifetime Member PIN 10K |
| BLF&E BROTHERHOOD LOCO FIREMEN & ENGINEERS 5 YR PIN |
| 24K Gold 45 Years Inter Union Operating Engineers Pin |
| Army Corps of Engineers Tiffany 14kt Gold Vintage Pin |
| BRITISH KING'S CROWN ROYAL ENGINEERS PIN MEDAL INSIGNIA |
| ww2 RE royal engineers MOP sweetheart pin badge WWII |