1927 UNDERPAID MAIL FRANCE TO SUSSEX WITH KGV 1/2d (SG351) USED INSTEAD OF POSTAGE DUE. Post card of Chartres to Hurst Green, Sussex with French 25c cancelled CHARTRES 11-9 22, postage underpaid with U.K. '1 1/2D/I.S.' charge mark with 1d postage due and 1/2d KGV Royal Cypher (SG351) tied dumb type cancellations. RARE USAGE OF A DEFINITIVE IN LIEU OF A POSTAGE DUE. (Ref 104985).