WW2 UNDERCOVER MAIL to CODING SCHOOL HMS CABBALA from ARGENTINA 1943 CENSORED

Printed Air Mail envelope from Buenos Aires Argentina with 35c pair + 1 peso franking, to Sqdn. Commander G.Norman, Ewell Surrey, forwarded to H.M.S Cabbala (Coding School), Lawton St Mary Warrington Lancs, private address; Examined By 1876 censor tape; Epsom machine transit on the back.