
Michel also lists PL 975C whose perforation is comb 11¾x11½. This perforation variety is not listed in Yvert, Scott or Fischer.
| Country: | Poland |
| Type: | Postage stamps |
| Series: | Warsaw Monuments |
| Nominal: | 40 gr |
| Year: | 1956 |
| Material: | greenish |
| Size: | 26 x 32 mm |
| Perforation: | frame 12¼ x 12¾ |
| Mintage: | 351,000 |
Warsaw Monuments
Poland










