Four stamps commemorating the 100th anniversary of the foundation of the SS. Cyril and Methodiu

Four stamps commemorating the 100th anniversary of the foundation of the SS. Cyril and Methodiu
Four stamps commemorating the 100th anniversary of the foundation of the SS. Cyril and Methodiu
Four stamps commemorating the 100th anniversary of the foundation of the SS. Cyril and Methodiu
Four stamps commemorating the 100th anniversary of the foundation of the SS. Cyril and Methodiu

Four stamps commemorating the 100th anniversary of the foundation of the SS. Cyril and Methodius National Library in Sofia, BulgariaPeople’s Republic of Bulgaria, 1978 -- source link


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