Kavel 2623

WWII, Rare cassette containing 34 original pictures, from the construction site of German secret program "B.V. 101, Zitteraal" in Ötztal, in the Austrian Tirol alps, which was to be a supersonic windtunnel for research of rockets and fighter jets, the tunnel was not completed before the end of the war, and it was dismantled at the end of 1945, and shipped to France, where it was rebuilt and used by "ONERA" (French aerospace research agency), it is still active and the largest tunnel of its kind, the case is covered with brown fabric, and in the lid there is a explanation of 31 of the 34 pictures inside, all pictures are of high quality and in good condition, very rare German secret project item, one of a kind piece, from the estate of "Russell G. Robinson 1908-2003", Alsos mission US Army WW2 and NACA/NASA