Description
1951 UNDERPAID MAIL WINDSOR, BERKS TO HOLLAND WITH DUTCH POSTAGE DUE. Envelope sent surface mail Windsor to Holland KGVI 2½d pale scarlet (SG507) cancelled 'WINDSOR/BERKS' 9 OCT 1951, postage underpaid with tax marks and Dutch 15 cent postage due cancelled 'SCHEVENINGEN' 10 X 15. (Ref 145479).