| Event | GWB |
|---|---|
| Narrative | George Washington Masonic Memorial Postmark #1: Mount Vernon, VA — 1979-02-22 Stamp: George Washington, 5 Cents (Coil Strip-3) (Scott #1283) |
| Cachet Sponsor | GWMSC |
| Design | Pictorial |
| Scott # | 1283 |
| Stock # | G-79-001 |
| Postmark Type | Special |
| Location | Mount Vernon, VA |
| Owner | GWMSC |