Sherwood Troop (Sam) Moore (1876-1968) entered Edison's employ around 1911 and remained with the inventor until his death in 1931. He played a key role in the development of disc records and was later involved in rubber research. These documents cover the years 1920-1927 and consist primarily of handwritten notes from Edison to Moore. Sixteen of the twenty-one dated items are from the period August 1920-February1921 and refer to difficulties with the production of disc records. Among the problems mentioned by Edison are echoes on recordings, bad record surfaces, wear on machinery, and bottlenecks in production. Also included are suggestions by Edison regarding improvements in machinery and procedures to economize and save labor. In addition, there is a note to Edison from experimenter Walter N. Archer suggesting the use of a different type of belt for the machines, with a comment by Edison advising Moore to "use your own judgement on these suggestions." The two items from January 1927 are not directly addressed to Moore and their subject matter is unclear. Most of the twenty-five undated notes are probably from the early 1920s, since many refer to the same production issues at the dated notes from this period. One note complains that "you don't keep in touch with me." To view all of the undated notes in one continuous sequence, click here.