Scott O138B
20c Great Seal (Coil) |
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Scott O138B
20c Great Seal
Coil Single
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Scott O138B
20c Great Seal
Coil Pair |
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Goebel Offset Optiforma Press — Perforation: 10 Vertically
Washington DC — 1988 May 19
Print Quantity: 27.1 million (Coil: 100) — Bureau of Engraving and Printing |
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Postal Bulletin 21673 — 1988 May 19 |
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