1986 UNDERPAID MAIL UK TO SAUDI ARABIA. Envelope (219 x 110), some faults, Milton Keynes to Riyadh, Saudi Arabia with 18p Machin cancelled MILTON KEYNES 2 OCT 1986, postage underpaid with London Foreign Section charge mark. On reverse SUR-DAMMAN receiver 22-12-1986. Unusual usage. (Ref 98122).
