File:Ref 1665 patent-pending-caseback.webp
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Patent Pending caseback — hand-engraved "OYSTER GAS ESCAPE VALVE / PATENT PENDING" in parentheses-style layout. Image via Monochrome.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:13, 24 May 2026 | | 1,507 × 1,507 (133 KB) | Admin (talk | contribs) | Patent Pending caseback — hand-engraved "OYSTER GAS ESCAPE VALVE / PATENT PENDING" in parentheses-style layout. Image via Monochrome. |
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