| ID | 9147 |
| Thumbnail | |
| Cat Number | 1346 |
| Variety | f1 |
| Description | Ft. McHenry |
| Series | Historic Flag Series |
| Denomination | 6ยข |
| Color | Dark Blue, Red |
| Separation Method | PF |
| Extent Perf Die Cut | 4 |
| HPerf | 11.00 |
| VPerf | 11.00 |
| Tagging | Overall |
| Tagging Color | |
| Paper Type | DF |
| Adhesive | WA |
| Gum Type | S |
| Format | S |
| EFO | F |
| Watermark | unw. |
| Specialfeatures | traces of tagging only |
| Printing Type | engraved (Giori Press) |
| Stamp Date | ---- |
| Printer Engraver | |
| Issue Year | 1968 |
| Image1 | |
| Issue Date | 7/4/1968 |
| Quantity Issued | |
| Visible | Yes |