Michel # 1829; Scott # 1704; Stanley Gibbons # 1822; Yvert # 1614; | |||
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Color: dark blue | |||
Date of Issue: 26.08.1968 | |||
Face Value: 1 st | |||
Designer: M. Peykova & V. Vasileva. | |||
Stamp Size: no information | |||
Stamp Quantity: 5 000 000 | |||
Perforation: 10 ½ |