Items

Items

• 

  [CA0620500B], Interview, Joseph Newcomb Blackman, February 1907

  1907-02-00
• 

  [CL217AAX], Letter from Joseph Newcomb Blackman to William Edgar Gilmore, May 23rd, 1908

  1908-05-23
• 

  [CL219ABK], Letter from National Association of Talking Machine Jobbers, Joseph Newcomb Blackman to Thomas Alva Edison, June 15th, 1909

  1909-06-15