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Issuer: Somalia
Issue: 30th Anniversary of I.C.A.O. Date: 12/23/1977 (1977 sheets) Block 1 (4, 2 x 2) 1, 1: 1.00sh d=ICAO emblem & Leonardo da Vincis flying machine 1, 2: 1,50sh d=ICAO Emblem & Montgolfier’s balloon 2, 1: 2.00sh d=ICAO emblem & Wright brothers plane 2, 2: 2.90sh d=ICAO emblem & Boeing 720B |
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