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Issuer: Zambia
Block in sheet 16316
Date: 12/18/1997 (1997 blocks)
(4, 2 x 2)
1, 1: 900k d=Bubo lacteus
1, 2: 900k d=Scotopelia peli (1997)
2, 1: 900k d=Tyto alba (1997 Zambia)
2, 2: 900k d=Bubo africanus