Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Five-Year Plan in Shorter Time Limits |
| Nominal: | 10 ст |
| Year: | 1961 |
| Size: | 36 x 27 mm |
| Perforation: | comb 13 |
| Mintage: | 5,000,000 |
Five-Year Plan in Shorter Time Limits
 Woman doctor aiding child 0.09$ |  Woman milking Cow |  Workers with the Ring Gear 1.1$ |  Female Textile Worker |
 Worker with Flag 0.64$ |  Electrician 0.13$ |  Children playing 0.08$ |  Miner 0.11$ |
 Woman Winegrower 0.11$ |  Steelworker 0.09$ |  Factories 0.08$ |  Female cottonpicker 0.06$ |