x Banque Nationale de Bulgarie, a group of die-proofs mounted on card for the 50, 100 and 1000 Leva, 1922, 50 Leva green with arms at centre flanked by values and reverse shepherd boy playing flute, 100 Leva grey-black with reverse farmer ploughing field with oxen, 1000 Leva grey (obverse) and red-brown (reverse) with rose-harvesting scene at centre flanked by values, all with typed annotations to upper margin, (Pick 37, 38, 40 for type), obverse 50 with vertical split along centre, reverse 100 with tear at centre, otherwise a pleasing group (6)
