An U-Boot issue Celestial globe or 'Stern Finder' by Ernst Schotte used principally to reduce the time on the surface to determine a position. The globe of brass with applied and lacquered heavy card segments showing stars and constellations, marked with the world famous globe maker's Logo : BERLIN - Georgr.artist.Anstalt von Ernst Schotte & Co. Contained in a japanned heavy brass fame the base marked with Kriegsmarine Eagle, Swastika and M. Manufacturer's details : Nautische Werkstatten G.m.b.h. Kiel 7111 The instrument comprises silvered brass Azimuth and Elevation scales, index pointer to elevation scale, rotating azimuth scale. This is an extremely rare U-Boot navigation instrument, this one is in perfect condition with his cover, and this is certainly the most beautiful navigation instrument for an U-Boot collector. Michel