1949 UNDERPAID MAIL CLAPHAM TO SWITZERLAND. Envelope (crease clear of stamps) Clapham to Lucerne, Switzerland with KGVI 2½d light ultramarine (SG489) cancelled CLAPHAM 13 JNE 1949, postage underpaid with Swiss postage dues 5c and 10c cancelled EBIKON/LUZERN date stamps 15.VI.49. (Ref 108412).
