| Event | FDC |
|---|---|
| Narrative | Earl Warren Postmark #1: Washington, DC — 1992-03-09 Stamp: Earl Warren, 29 cents (Zip Margin Single) (Scott #2184) |
| Cachet Sponsor | GWMSC |
| Design | Pictorial |
| Scott # | 2184 |
| Stock # | G-92-006 |
| Postmark Type | FDC |
| Location | Washington, DC |
| Owner | GWMSC |