1950-51, greenland franco and on front with postage due 20 c on 2 d and 5 c on 1/2 d, with black opt B.A. ERITREA, on full letter sent from Thule/Greenland via USA to Eritrea, very fresh and desirable, a great rarity, XF! Schätzpreis 20.000€. (Image)

Estimate € 20000