Spain
Blue control number (letter "A" and six digits) on the back
| Country: | Spain |
| Type: | Postage stamps |
| Series: | Telegraphs - Coat of arms (1921-1930) |
| Nominal: | 50 Spanish céntimo |
| Year: | 1921 |
| Perforation: | 13½ x 12¾ |
