Poland
Irregular line perforation with a diameter of perforation holes A: 0.5 mm, B: 0.8-0.9 mm.
| Country: | Poland |
| Type: | Postage stamps |
| Nominal: | 3+7 zł |
| Year: | 1946 |
| Material: | medium, rough, gray-yellowish white (0,08-0,095 mm) |
| Perforation: | line 10¾ |
| Mintage: | 173,950 |
