| Event | FDC |
|---|---|
| Narrative | Photo of Presidential Mansion and WhiteHouse Postmark #1: Washington, DC — 1981-10-13 Stamp: Irish-American Architect of the White House, 18 cents (Scott #1935) |
| Cachet Sponsor | GWMSC |
| Design | Pictorial |
| Scott # | 1935 |
| Stock # | G-81-005 |
| Postmark Type | FDC |
| Location | Washington, DC |
| Owner | GWMSC |