Letters from Yehoshua Wertheimer about 'tefillin' (phylacteries) of his fallen son (Hebrew, Russian);
Letters and postcards from friends and family members about family and health matters, and regards;
Letters from friends and soldiers in Mule Corps about: situation in the corps, requests for release from service. (Russian, French)
Among authors of the letters: A. Gordetsky, Fira Rosoff, Reuven Katznelson, Nissel Rosenberg.