Red cross overprints

German occupation - General Government
Fischer 52-55 | Michel 52-55 | Year of issue 1940

Fischer 43, 45, 48 and 50 in different colour, overprinted with a red cross and surcharge.

52
University court, Kraków

53
Wawel castle, Kraków

54
Town hall tower, Kraków

55
Saint Mary's church, Kraków