Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 3c Byrd Antarctic plate proof
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StampSource · si-npm
3c Byrd Antarctic plate proof
Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1933
Catalog record
| Line | US |
|---|---|
| Set / series | Smithsonian National Postal Museum — Bureau Plate Proofs |
| Language | English |
| Year | 1933 |
| Date | September 27, 1933 |
| Kind | stamp |
| Place | United States of America |
| Scott | USA 733 |
| Medium | paper; ink (dark blue) / engraving |
| Region | us |
| Npm record | npm_0.242263.15906 |
| Description | Certified plate proofs are the last printed proof of the plate before printing the stamps at the Bureau of Engraving and Printing. These plate proofs are each unique, with the approval signatures and date. For postal scholars these plates provide important production information in the plate margin inscriptions, including guidelines, plate numbers, and initials of the siderographer, or person who created the plate from a transfer roll. |
| Oracle ID | 36592874 |
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Other prints of 3c Byrd Antarctic plate proof in the catalog
Source credit: Smithsonian National Postal Museum