| ID | 3521 |
| Thumbnail | |
| Cat Number | 2544 |
| Variety | |
| Description | Space Shuttle Challenger (1995), Priority |
| Series | Priority & Express Mail |
| Denomination | $3.00 |
| Color | Multicolored |
| Separation Method | PF |
| Extent Perf Die Cut | 4 |
| HPerf | 11.20 |
| VPerf | 11.20 |
| Tagging | Solid |
| Tagging Color | |
| Paper Type | |
| Adhesive | WA |
| Gum Type | S |
| Format | S |
| EFO | |
| Watermark | unw. |
| Specialfeatures | Priority mail |
| Printing Type | Lithographed, engraved |
| Stamp Date | 1995 |
| Printer Engraver | |
| Issue Year | 1995 |
| Image1 | |
| Issue Date | 6/22/1993 |
| Quantity Issued | |
| Visible | Yes |