Rare early years of production. On the rear side of the mark - "D. R. G. M., H. R. 41 E., D. R. P. angm.". A flask equipped with a canvas belt with a horizontal loop. On the metal parts of the strap and carabiner still have the original paint coat are marking manufacturers. Clasp has slight traces of corrosion. Included unmarked bakelite Cup with traces of cleavage. Complete the item in good condition.