This collection includes photographs, letters, a special illustrated scroll, and a traditonal Japanese calligraphic rendering given to Sanehiko Yamamoto by Albert Einstein in recognition of Yamamoto's hospitality and friendship during Einstein's 1922 trip. Also included is a 1949 letter from Yamamoto to Einstein and photographs documenting Yamamoto's continued freindship with Einstein after World War II. One of the photographs, of Albert Einstein and his wife staying with the Yamamoto family in 1922, was retained by the donor and is only available in digital form online.