DEVELOPMENT OF THE BULGARIAN AIR MAIL 1875-1948

Classification

Territory

Balkans Bulgaria

Subject

Air transport (incl. aerophilately) Airmail Airmail postmarks Airmail stamps and stationery and their postal use History of the post and its operations (incl. a chosen territory) Standard post office postmarks

Time period

Late 19th century Early 20th century (until World War I) World War I Interwar period World War II Late 1940s

Exhibition class

Standard-size exhibits (approx. 80 or 128 sheets)