10/18/1880 Batchelor, Charles -- Technical Notes and Drawings
Incandescent lamp; Vacuum and glass bulb
[X001G2]  Henry Ford Museum and Greenfield Village Research Center, Dearborn, Mich.: Edison Papers and Related Items -- Series II: Thomas Alva Edison Notes, Drawings and Sketchbooks -- Unbound Notes and Drawings
[X001G2AI; TAEM 0:0]
Courtesy of the Henry Ford Museum and Greenfield Village Research Center.