BULGARIEN
VOLKSREPUBLIK BULGARIEN. 1946-1991, Sofija.5 Leva 1963 (Alphabet), 1964 (Dimitrov), 1970 (Vazov), 1971 (Rakovski), 1972 (St. Paisij), 1973 (Levski); 2 Leva 1963 (Alphabet). KM 66, 70, 78, 79, 81, 82, 65. Schön 64, 68, 76, 77, 78, 80, 63. 7 St. PPminb