1912, Tsar Ferdinand, 5st pale green, error of color, block of four, full OG, NH, VF and extremely rare, A. Rendon and P. Karavainov certificates, the last one stated that only 40 mint copies survived of 500 stamps issued

1917, Coat of Arms and Scenes, 5st green, 15st slate, 25st blue, three values in horizontal imperforated pairs, full OG, NH, VF, Mi #112U-14U

200.00

Air Post stamps

1932, Rila Monastery and Airplane, complete set of three, full OG, NH, VF, Mi #249-51, ?250, Scott C.v. $120 as hinged

75.00