04/22/1878 New York Herald -- Clippings
"The Phonograph, Thomas A. Edison's Wonderful Invention Examined", New York Herald
[MBSB1]  Special Collections Series -- Charles Batchelor Collection -- Scrapbooks: Cat. 1240 (1876-1878)
[MBSB10541X; TAEM 94:173]
Courtesy of Thomas Edison National Historical Park.