Source: Colnect |
Issuer: Mongolia
Issue: 20th Anniversary of the Admission of Mongolia to the World Intellectual Property Organization Date: 12/24/1999 (1999 sheets) Block 1 (9, 3 x 3) 1, 1: 250t d=Boeing 747-400 F 1, 2: 250t 1, 3: 250t 2, 1: 250t 2, 2: 250t 2, 3: 250t 3, 1: 450t 3, 2: 450t 3, 3: 450t |
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