| Image Thumbs | |
| Cert Num | 1372637 |
| Cert Date | 2020-06-22 |
| Catalog Number | K1 |
| Country | USA |
| Year | 1919 |
| Denom | 2c on 1c |
| Color | Green |
| Grade | Ungraded |
| Description | Used |
| Opinion | it is a genuine usage of two singles tied on cover by a U.S. POS. SERVICE SHANGHAI, CHINA duplex cancel dated Jul 5 1919. |
| Cert Link | http://psestamp.com/Cert/1372637 |