World War I Postal Cover
A Bulgarian postal cover from World War I, postmarked at Bucharest on 13 September 1918. [...more]
A Bulgarian postal cover from World War I, postmarked at Bucharest on 13 September 1918. [...more]
Bulgaria was one of over 100 countries to issue stamps commemorating the return of Halley's Comet in 1986. They issued a four stamp set as a souvenir sheet, with each stamp denominated 25 stotinki. [...more]
A list of all regular and airmail postage stamps issued by the Kingdom of Bulgaria between 1908 and 1931. Click to view stamps or to learn about the subject. [...more]