Preserving the Rails-to-Rotunda Story of Charles F. Thomas: treating a hand-colored salted paper photograph

Preserving the Rails-to-Rotunda Story of Charles F. Thomas: treating a hand-colored salted paper photograph

04/27/2026 04:46 PM EDT

From designing early locomotives to raising the Statue of Freedom on the Capitol Dome, Charles Frederick Thomas played a unique role in D.C. history. Harper-Inglis Fellow in Photograph Conservation, Sophie Hoone, discusses the treatment of a hand-colored photograph of a locomotive from the Charles Frederick Thomas Photographs collection in the Prints and Photographs Division.

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