Postage stamps with two world-renowned scientists from BAS
The Bulgarian Academy of Sciences celebrated the 125th anniversary of the birth of two world-renowned scientists – Acad. Nikola Obreshkov and Acad. Georgi Nadjakov. At a ceremony at BAS, a series of two stamps on the theme “Bulgarian scientists. 125 years since the birth of Acad. Nikola Obreshkov and 125 years since the birth of Acad. Georgi Nadjakov”. The painter of the stamps is Assoc. Prof. Stoyan Dechev. […]