Poland
Issue for Upper Silesia.
Perforations: line 9-14½ or comb 11¾, 12¾ or frame 12¾x12½
Perforations: line 9-14½ or comb 11¾, 12¾ or frame 12¾x12½
| Country: | Poland |
| Type: | Postage stamps |
| Series: | regular edition |
| Nominal: | 20 mp |
| Year: | 1922 |
| Material: | white, smooth, very thin (v) |
| Size: | 27 x 22.5 mm |
| Perforation: | frame 12¾ x 12½ |
