Bulgaria
thick, gray atrojado Paper, bad Perforation
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Postage Due 1921 Numbers |
| Nominal: | 20 ст |
| Year: | 1921 |
| Perforation: | line 11½ |
| Mintage: | 1,500,000 |
Postage Due 1921 Numbers
 Color changes and Supplement Values 0.21$ |  Color changes and Supplement Values |  Color changes and Supplement Values |  Color changes and Supplement Values 52$ |
 Numeral 0.16$ |  Number 0.13$ |  Number 0.09$ |