von Kluck, AlexanderAutograph correspondence (10 letters & 3 postcards) signed, 45 pages (partly both sides) on 26 sheets, in different sizes from 3,75 x 5,5 inch (postcards) to 8,5 x 11 inch (largest letters), inter alia Hirschberg Berlin, 1915 1934, in German, rich correspondence with Lieutenant General Friedrich Gontard (1861 1931), an old friend who worked together in the 1st Army Corps in addition to the regular extensive exchange of information on the current