Query: *
[Four early light bulbs : black & white photoprint.]
Level:
item
Creators:
Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
Dates:
1904
Size:
1 Item (Silver gelatin on paper, 4.0" x 7.1")
Collection ID:
NMAH.AC.0069
Repository:
Archives Center, National Museum of American History

Digital Content Available