| Event | FDC |
|---|---|
| Narrative | Text Gus Grissom Memorial Postmark #1: Chicago, IL — 1992-05-29 Stamp: Space Accompleshments, 29 cents (Copy/Notation Block-4) (Scott #2631-2634) |
| Cachet Sponsor | GWMSC |
| Design | Pictorial |
| Scott # | 2631-2634 |
| Stock # | G-92-012 |
| Postmark Type | FDC |
| Location | Chicago, IL |
| Owner | GWMSC |