04/15/1878 Edison Speaking Phonograph Co to Watson, Thomas Augustus
Sales and service; Shipping and materials handling; Cylinder phonograph [Cover Document and Attachment]
[X012G1]  AT&T Archives and History Center, Warren, N.J.: Edison Speaking Phonograph Company Records -- Correspondence (Box 1205)
[X012G1BL; TAEM 0:0]
Courtesy of the AT&T Archives and History Center.