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PSAG, Inc. PO Box 410880, Melbourne, FL 32941 FEDERAL EXPRESS: Attention: PSAG, Inc. 3960 Dow Road, Melbourne, FL 32934
PSAG — Philatelic Stamp Authentication and Grading

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Look up a certificate by its certification number or submission UUID (for example 550e8400-e29b-41d4-a716-446655440000) to view the PSAG certification card for that stamp.