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Description: Bulgarian scientists: 125th birth anniversaries of Acad. Nikola Obreshkov and Acad. Georgi Nadjakov
Date of issue: 16.12.2021
Denomination: 0.65 & 1.00 Leva
Quantity: 5500
Stamp size: 54 x 29 mm
Perforation: 13 1/4 : 13
Sheets: 5 x 8
Printing process: offset / digital
Designer: Stoyan Dechev
Cover (stationery): No
FDC: No

stamps