1943(Jun 25) Plain envelope to Lieutenant (E) A.M. Idema, Royal Netherlands Navy, North Rd., London W.1. overlaid with redirectional H. NETHERL. M. S., c/o GPO., LONDON, E.C.1. label with ink O9 inserted bearing horizontal pair of bi-lingual 2d War Effort Bantams tied bi-lingual East London Spend Less Save More slogan & with black on white GECENSUREERD / MARINE-CENSUUR label & on reverse London W.1. (14 Sep) transit …HNLMS 09 was in Holland on 10 May 1940 when the Germans invaded & over ran the nation, she headed for British waters immediately on receiving news & spent the war mainly on escort duties in European waters..