Hammer Collection

The Smithsonian Institution, National Museum of American History

William Hammer, an engineer who worked with Edison, assembled a comprehensive collection of historically important light bulbs. The label for Latimer's lamp [second row left] reads, "This lamp was invented by a colored man, Mr. L. H. Latimer, in New York 1882, and was presented to me by Mr. Latimer in 1884.".

Hammer exhibit

© Queens Borough Public Library