| ID | 1864 |
| Thumbnail | |
| Cat Number | 1861 |
| Variety | |
| Description | Thomas H. Gallaudet, Educator |
| Series | Great Americans |
| Denomination | 20ยข |
| Color | Green |
| Separation Method | PF |
| Extent Perf Die Cut | 4 |
| HPerf | 11.00 |
| VPerf | 10.50 |
| Tagging | Overall |
| Tagging Color | |
| Paper Type | |
| Adhesive | WA |
| Gum Type | D |
| Format | S |
| EFO | |
| Watermark | unw. |
| Specialfeatures | vert. tagging gap |
| Printing Type | engraved |
| Stamp Date | ---- |
| Printer Engraver | |
| Issue Year | 1983 |
| Image1 | |
| Issue Date | 6/10/1983 |
| Quantity Issued | |
| Visible | Yes |