| Certification | Uncertified |
|---|---|
| Grade | F/VF (Fine/Very Fine) |
| Quality | Mint Never Hinged/MNH |
| Place of Origin | United States |
| Denomination | 31 Cent |
| Topic | Aviation |
| Year of Issue | 1971-1980 |
| Type | Errors, Freaks, & Oddities (EFO's) |
| Country | United States |
| Item Condition | Mint Never Hinged |
| EFO Type | Misperf |
Check the listing for details. C91 - C92a Inking Error / EFO Dark Blue Eng Underinked "Wright Brothers" Mint NH. Listed at 7.99 USD. Nice inking error. Dark blue engraved lettering under inked. Would make an excellent addition to your collection.
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