Bulgaria a lansat un catalog electronic cu istoria timbrelor poștale din 1879 până în prezent
Bulgaria's Ministry of Transport has launched an electronic catalog detailing the history of Bulgarian stamps from 1879 to present, featuring over 5,800 digitized stamps. The digital gallery includes information on designers, themes, issuance dates, and technical specifications. It highlights the first stamp in the world related to chess, issued in 1947. This catalog serves as a valuable reference for Bulgaria's philatelic heritage, reflecting the country's history and culture.