1918 (5.7.), stampless O.H.M.S. cover from Niue to The Hague/Holland with Wellington/NZ. transitmark on reverse (24.8.1918) and censorstrip and marking 'PASSED BY THE MILITARY CENSOR N.Z.' in violet, Scheveningen arrival cds. of 1st November 18 with additioonal black 4-line 'RE-ADRESSED / INTERNED BRITISH / PRISONER OF WAR / SCHEVENINGEN' on front, cover opened three-sides for display but a very unusual and rare combinaion of POW mail (Tax Method: Margin System)