#1479-1484 Bulgaria - April Uprising Against the Turks, 90th Anniv. (MNH)
1966 April Uprising Against the Turks, 90th Anniversary, Set of 6. Designs: 1s, Proclamation of April Uprising, Koprivstitsa. 2s, Georgi Benkovski and T. Kableshkov. 3s, Dedication of the flag. 5s, V. Petleshkov. 10s, Z. Dyustabanov. 13s, P. Volov, Ilarion Dragostinov.