Partisan (Milivoje Rodić, later colonel of the Yugoslav army)

small size numerals in serial # (Russian print)
series AA, AB, AC, AE, AH, AK, AM, AO, AP, AT, AX, AY, BA, BB, BC, BE, BH, BK, BM, BO, PA, PB, PC
numeral "4" closed on top

series "Б" (Yugoslav print)
series БA, ББ, БB, БГ, БД, БE, БЗ, БИ, БJ, БK, БЛ, БM, БH, БO, БП, БP, БC, БT, БУ, БX,  ГA, ГБ, ГB, ГГ, ГД, ГE, ГЗ, ГИ
numeral "4" open on top