1912. "Post Office Department. Hupp Auto Railway Service" (i.e., Hupp Automatic Mail Exchange, a system for transferring mail bags to and from a moving train). Harris & Ewing Collection glass negative. Note the two utility poles at left that have been scratched off the negative. View full size.
  BUY PRINT    1912. "Post Office Department. Hupp Auto Railway Service" (i.e., Hupp Automatic Mail Exchange, a system for transferring mail bags to and from a moving train). Harris & Ewing Collection glass negative. Note the two utility poles at left that have been scratched off the negative. | Click image for Comments. | Home | Browse All Photos