Germany, Kriegsmarine. A Lot Of Ten Naval Postcards certificate_of_authenticity otherwise in very fine condition

otherwise in very fine condition and very rare case

concluding that the "accident (was) due to faulty cockpit drill

He came from a military family

the obverse with a central royal crown

both items just above the right breast pocket

Germany, Kriegsmarine. A Lot Of Ten Naval Postcards certificate_of_authenticity otherwise in very fine conditionA rectangular postcard with the image of five ships on the water with a mountainous background, the bottom reads in white S. M. S Hohenzollern S. M. S Friedrich der Grosse, Kaiser und Kolberg in Balholm, the reverse is unmarked; A rectangular postcard with the image of an S90 class torpedo boat, the bottom reads in white Hochsee Torpedoboot G 171 im Sturm. Im Heilst dursch zusammenstoss mit S. M. S Faehringer in der Nordsee gesunken, the reverse is