War navy 1937, marconigram "MaPriFu" from liner "Silesia" over coastal radio station Kiel radio to the fiance of a crew members. Extremely rare form with spectacular content "_ have steamer from distress rescued _". With associated cover with letter cancel "navy intelligence officer Kiel" as official matter liable to payment of postage without prepaid postage with postage due at receiver in Wilhelmshaven. Rarity.