Description
1951 UNDERPAID MAIL LONDON TO LUGANO WITH SWISS POSTAGE DUE. Post card of Trafalgar Square from London to Lugano in Switzerland with KGVI 1d light ultramarine (SG504) x 2 cancelled London 22 AUG 1951, postage underpaid with 10c postage due cancelled 'LUGANO' 24 VIII 51. (Ref 135398).
