| Image Thumbs | |
| Cert Num | 1230309 |
| Cert Date | 2010-11-18 |
| Catalog Number | 571 |
| Country | USA |
| Year | 1923 |
| Denom | $1 |
| Color | Violet brown |
| Grade | Ungraded |
| Description | Mint OGnh |
| Opinion | it is a genuine unused, o.g., never hinged, block of four with vertical guide line. |
| Cert Link | http://psestamp.com/Cert/1230309 |