1955 MAIL EDINBURGH TO U.S.A./2/6 YELLOW-GREEN (SG509)/U.S. POSTAGE DUE. Envelope Edinburgh to Ohio, U.S.A. with KGVI 2/6 yellow-green (SG509) (corner fault) and QEII 6d Wilding cancelled FOREST ROAD/EDINBURGH cds's 6 DE 55. At left U.K. customs and currency label and on front "U.S. CUSTOMS/PASSED FREE/CLEVELAND, OHIO" cachet with U.S. pre-cancelled 10 cent postage due affixed. Unusual. (Ref 104121).