| ID | 9140 |
| Thumbnail | |
| Cat Number | 2197 |
| Variety | f1 |
| Description | Jack London, Author |
| Series | Great Americans |
| Denomination | 25ยข |
| Color | Blue |
| Separation Method | PF |
| Extent Perf Die Cut | 2,3 |
| HPerf | 10.00 |
| VPerf | 10.00 |
| Tagging | Large Block |
| Tagging Color | |
| Paper Type | DF |
| Adhesive | WA |
| Gum Type | D |
| Format | B |
| EFO | F |
| Watermark | unw. |
| Specialfeatures | block tag shifted left |
| Printing Type | engraved |
| Stamp Date | ---- |
| Printer Engraver | |
| Issue Year | 1988 |
| Image1 | |
| Issue Date | 5/3/1988 |
| Quantity Issued | |
| Visible | Yes |