Constitution of the Principality of Bulgaria Constitution of the Principality of Bulgaria, approved by the Constituent Assembly in 1879. Copy. The original is in the Central State Archives Manifesto for declaring the Principality of Bulgaria an independent kingdom Manifesto declaring the Principality of Bulgaria an independent kingdom, September 22, 1908. Copy A golden cup Gold cup presented by Prime Minister Stefan Stambolov to Prince Ferdinand I and Princess Maria Luisa on the occasion of their wedding, 1893. People's Order "For Military Merit" XNUMXst degree with a star. People's Order "For Military Merit" 1885st degree with a star. Belonged to gen. Nikola Petrov - Balkan citizen, soldier, participant in the Serbo-Bulgarian war in XNUMX. Jubilee medal "50 years Sofia University "St. Kliment Ohridski" A commemorative sign A commemorative sign for the construction of the railway the line Sofia - Pernik, 1893 Award of the world famous opera singer Hristina Morfova Award of the world famous opera singer Hristina Morfova, presented to her in Czechoslovakia in 1919. Bell from the National Assembly Bell from the National Assembly declaring Bulgaria a People's Republic, 1946.