| Event | FDC |
|---|---|
| Narrative | George W. Norris Postmark #1: Washington, DC — 1961-07-11 Stamp: Senator George W. Norris of Nebraska, and Norris Dam, 4 cents (Scott #1184) |
| Cachet Sponsor | GWMSC |
| Design | Pictorial |
| Scott # | 1184 |
| Stock # | G-61-001 |
| Postmark Type | FDC |
| Location | Washington, DC |
| Owner | GWMSC |