Bidspirit auction | Poland - Cracow (Kraków) issue

Poland - Cracow (Kraków) issue - 1919, black overprint ''Poczta. Polska'' on Austrian Emperor Karl I 15h dull red (overprint position I.6) and 20h dark green (position I.25), both with large part of OG, VF, expertized by H. Bloch, C.v. $370, Est. $150-$200, Sc. # 56-57