1941, First Flight "Liberia - U.S.", black surcharge 50c on air post definitive stamps of 1938, set of five values, full OG, LH or previously hinged, VF, expertized by Sanabria, H. Bloch, J. Stolow and etc., stamp of 5c with official seal on gum side, C.v. $575
1893, (10c) black, inscribed "Harper", perfect quality and premium centering, full OG, very light trace of hinge, VF and rare, especially in sound condition, C.v. $2,500