c1942 censored envelope to Auckland, New Zealand, from a member of the 1st Heavy Battery, Tonga Defence Force, endorsed at the top 'On Active Service'. The cover has a superb strike of the very scarce O.H.M.S. TONGA DEFENCE FORCE handstamp and a boxed CENSORED cachet with the signature of J Hamilton, Lt. The senders name etc. is on the back of the cover. An extremely scarce cover.