| GIBRALTAR - 1937 1 1/2d rate underpaid tax cover to Austria with 20c 'postage due' pair added.
1937 (JUL.9.) underpaid cover addressed to Austria bearing 1 1/2d adhesive tied by GIBRALTAR/
THE TRAVEL KEY slogan strike. Handstamped by scarce black boxed (DO NOT TAX) handstamp, but unreadable. Marked 'T/30' and '40' in blue manuscript and with 20g blue Austrian 'Postage Due' pair added on arrival and cancelled by WIEN 66/3d cds. A scarce due cover.
£65.00 | |