Edison M. 300 c.p. "ghost" light bulb, [black & white photoprint]
odd: label: Local Numbers
content: AC0069-0000020 (AC scan number)
name: label: Collector
content: Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
label: Collection Creator
content: Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
topic: label: Topic
content: Light bulbs
creator: label: Collector
content: Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
setName: label: See more items in
content: William J. Hammer Collection
label: See more items in
content: William J. Hammer Collection / Series 4: Photographs / 4.2: Edisonia / Photographs of the Edison M. 30cp "Ghost"
physdesc: label: Extent
content: 1 Item (7.0" x 5.0")
phystech: label: Physical Characteristics and Technical Requirements
content: Silver gelatin on paper.
unitdate: label: Date
content: 1893
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs
arrangement: label: Arrangement
content: Series 4, box 97a. folder 6.
genre_format: label: Genre/Form
content: Photographs -- 1890-1910 -- Black-and-white photoprints
scopecontent: label: Scope and Contents
content: "Proof of my [William Hammer] discovery in Feb 1881 of "Phantom Shadow" written on the photo.