2 Groschen large shield, blue, special feature: being absent perforation hole right position 13 - at this rare! \", tied by Prussian framed cancel of 3 lines \"Schwerin at the Warthe 11 3 75\", the using up as 20 pennies stamp in the year 1875, diagonal trace of crease - beyond that faultless condition, photo expertize Krug BPP