1940 UNDERPAID MAIL/MIDDLESEX. Post card (slight creasing) Cheshire to Hayes Middlesex with KGVI 1d postage underpaid with "1D/TO PAY LIABLE TO POSTCARD RATE/960" chargemark with ms alteration to "2D" with 2x 1d postage dues cancelled HAYES/MIDDLESEX 18 JU 40. (Ref 86996).