Czechoslovakia
postage due stamp comb13 1/2 : 12 3/4 or 13 1/2 : 13 1/4 or 13 1/3
Valid to 1939-12-15 in Protectorate Bohemia and Moravia, valid to 1940-07-31 in Slovakia
Valid to 1939-12-15 in Protectorate Bohemia and Moravia, valid to 1940-07-31 in Slovakia
| Country: | Czechoslovakia |
| Type: | Postage stamps |
| Series: | Delivery stamps |
| Nominal: | 50 h |
| Year: | 1937 |
| Size: | 45 x 25 mm |
| Perforation: | comb 13½ x 12¾ |
| Mintage: | 2,720,000 |
