| Image Thumbs | |
| Cert Num | 1299900 |
| Cert Date | 2015-04-03 |
| Catalog Number | C23 |
| Country | USA |
| Year | 1938 |
| Denom | 6c |
| Color | Dark blue & carmine |
| Grade | Ungraded |
| Description | Used |
| Opinion | it is a genuine usage of three single stamps tied on cover to Chicago, Ill by Dayton, Ohio duplex cancels. |
| Cert Link | http://psestamp.com/Cert/1299900 |