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Issuer: Portugal
Block in sheet 8017
Date: 10/1/1993 (1993 blocks)
(4, 4 x 1)
1, 1: 42e d=Perf: 11½ Vertical
1, 2: 70esc d=Perf: 11½ Vertical
1, 3: 90esc d=Perf: 11½ Vertical
1, 4: 130esc d=Perf: 11½ Vertical