07/13/1878 [Supplied day and month] Edison, Thomas Alva -- Articles
(American Association for Advancement of Science [supplied or conjectured]; Barker, George Frederick [supplied or conjectured]) Scientific and other instruments; Miscellaneous electrical technologies
[MBSB2]  Special Collections Series -- Charles Batchelor Collection -- Scrapbooks: Cat. 1241 (1878-1881)
[MBSB21074B; TAEM 94:440]
Courtesy of Thomas Edison National Historical Park.