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StampSource · si-npm
1c Washington plate proof
Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1922
Catalog record
| Line | US |
|---|---|
| Set / series | Smithsonian National Postal Museum — Bureau Plate Proofs |
| Language | English |
| Year | 1922 |
| Date | February 16, 1922 |
| Kind | stamp |
| Year | 1922 |
| Place | United States of America |
| Scott | USA 538a |
| Medium | paper; ink (green) / engraving |
| Region | us |
| Npm Record | npm_0.242263.13420 |
| 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. |
| Image Source | Smithsonian Open Access |
| Image License | CC0 |
| Oracle ID | 36594960 |
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Other prints of 1c Washington plate proof in the catalog
Source credit: Smithsonian National Postal Museum