105330 - 1951 UNDERPAID MAIL LINCOLN TO BELGIUM.

1951 UNDERPAID MAIL LINCOLN TO BELGIUM. Envelope Lincoln to Belgium with 2½d light ultramarine (SG489) cancelled LINCOLN 16 APR 1951, postage underpaid with Belgium 1FR postage due x 2 cancelled 18-4-51. Attractive usage. (Ref 105330).