May 23, 1941 $1.80 6 times the 30 cent rate cover to the U.K. Franked with numbers 241, 243, 244 & 245. Sent to a Captain in the Royal Canadian Army Medical Corps. Has "TRANS-ATLANTIC AIR MAIL ARMY P.O. ENGLAND" hand stamp at left. Vertical fold at center plus some creasing at right which is typical on over weight covers. Also a few minor stains. ARMY POST OFFICE S.C.1 9 JNE 41 machine cancel on the back.