Browse Items (166 total)

Dr. Hubert Work, Colorado, cameo portrait

Drawings by Alexander Graham Bell that show his model for the first metal detector to help save President Garfield's life.

Drawings by Alexander Graham Bell that show his model for the first metal detector to help save President Garfield's life.

A table showing the output in tonnage of Carnegie's Edgar Thomson steel works

Photograph of the Edgar Thomson Steel Works, 1875

Political Map showing which candidate won which state

Eugene V. Debs giving an impassioned talk on the campaign trail

A photo of Eugene V. Debs, the head of the ARU at the time of the Pullman strike.

The invention of the airplane

Drawings by Alexander Graham Bell that show his model for the first metal detector to help save President Garfield's life.