Lot 198
Opening: 1.500 €
Verkocht voor: 4.800 €
Michel IP, IIP
2
Warszawa 1915, imperforated proofs unissued 5 and 10 Gr in ½ sheets of 20, cert. Prof. A. Laszkiewicz (for full sheets of 40), all stamps signed A. Laszkiewicsz. Today only these ½ sheets are known.