| Image Thumbs | |
| Cert Num | 1269941 |
| Cert Date | 2013-09-24 |
| Catalog Number | C18 |
| Country | USA |
| Year | 1933 |
| Denom | 50c |
| Color | Green |
| Grade | Ungraded |
| Description | Used |
| Opinion | it is a genuine first day of issue cover, with a block of four, flown round trip from Friedrichshafen, Germany and then returned to Springffield, Mass. |
| Cert Link | http://psestamp.com/Cert/1269941 |