Description: This is an image of a row of five postal clerks testing the Gehring Mail Distributing Machine in the city post office building in Washington, D.C. This building is where the National Postal Museum currently resides.
Creator/Photographer: Unidentified photographer
Medium: Black and white photographic print
Collection: U.S. Postal Employees
Persistent URL: arago.si.edu/index.asp?con=2&cmd=1&id=194280
Repository: National Postal Museum
Accession number: A.2006-28