| ID | 6688 |
| Thumbnail | |
| Cat Number | 4135 |
| Variety | |
| Description | Flag |
| Series | Flag - First Class/41¢ |
| Denomination | "USA First-Class" (41¢) |
| Color | Multicolored |
| Separation Method | SDC |
| Extent Perf Die Cut | 2 |
| HPerf | n/a |
| VPerf | 10.90 |
| Tagging | Overall |
| Tagging Color | |
| Paper Type | |
| Adhesive | SA |
| Gum Type | n/a |
| Format | C |
| EFO | |
| Watermark | unw. |
| Specialfeatures | corners rounded; V/P; back Aqua or Pink #'s 5M |
| Printing Type | Photogravure |
| Stamp Date | 2007 |
| Printer Engraver | AVR |
| Issue Year | 2007 |
| Image1 | |
| Issue Date | 4/12/2007 |
| Quantity Issued | |
| Visible | Yes |