4, 50 Kc on 1 Kc Purkyne, right with overprinted ornamental field and part of margin of sheet, with date stamp "NIKLASDORF a 30. IX. 38" and cancel of liberation on piece. With overprinted blank field are only three examples of this stamp known. Signed Dr. Hörr, photo expertize Brunel BPP "the condition is perfect. "