Description
1949 'O.H.M.S'. MAIL LONDON TO HESTON, MIDDX WITH 'CROWN/CONSTABLES OFFICE/TOWER OF LONDON' CACHET. Envelope 'On His Majesty's Service' from London to Heston, Middx with 'LONDON' cancellation 21 OCT 1949 and at lower left superb strike 'CROWN/CONSTABLES OFFICE/TOWER OF LONDON' cachet in purple with fine image Tower of London in centre. (Ref 144836).