Bulgarien, Bulgaria, 10.9.1928, air mail, cover from Sofia to Scott Stamp Coin in New York, registered via London, franked Bunavad-Airs 1 L on 6 L + 2 L (3) + 4 L + 10 L (2) + defin´s 50 St. (block of 4) + 10 L, at back transit and arrival mkgs., good cond. (Image)

Start Bid €50

Bulgarien, Bulgaria, 2.9.1929, air mail, cover from Sofia to Prague, franked Bunavad Airs only 1 L on 6 L in rare horizontal gutter pair 1 + 2 L (3) + 4 L (2) + 10 L (2), good cond. (Image)

Start Bid €150