National Museum of American History

John H. Irwin received patent number 35,158 on May 6, 1862, of this design of a coil oil lamp.

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National Museum of American History Small-Group Tour (Mar 2024)

A People's Journey, A Nation's Story

Smithsonian National Museum of American History

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Ultimate Guide To The National Museum of American History

National Museum of African American History and Culture – Museum

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