| Image Thumbs | |
| Cert Num | 1360005 |
| Cert Date | 2019-04-23 |
| Catalog Number | 156a |
| Country | Canada |
| Year | 1929 |
| Denom | 12c |
| Color | Gray |
| Grade | XF 90 |
| Description | Mint NGAI |
| Opinion | it is a genuine unused, o.g., never hinged, imperf block of four. |
| Image Hi Res | |
| Cert Link | http://psestamp.com/Cert/1360005 |
| ID | 154036 |