| Image Thumbs | |
| Cert Num | 1314690 |
| Cert Date | 2016-04-18 |
| Catalog Number | U436h |
| Country | USA |
| Year | 1917 |
| Denom | 3c |
| Color | Carmine |
| Grade | Ungraded |
| Description | Used |
| Opinion | it is a genuine used, postal stationary window envelope with Scott No. C10 on CAM 8 first flight with cachets, the back flap repaired. |
| Cert Link | http://psestamp.com/Cert/1314690 |