North Korea block of 7 types

No block images found

Issuer: North Korea
Block in sheet 19479
Date: 2/26/1977 (1977 blocks)
(8, 4 x 2)
1, 1:
1, 2: 2ch
1, 3: 5ch
1, 4: 10ch
2, 1: 15ch
2, 2: 25ch
2, 3: 40ch
2, 4: 50ch d=Airmail