October 2, 1922. Washington, D.C. "Ford Target Computor. Capt. H.E. Ely." An electro-mechanical approach to the aiming of large artillery pieces. National Photo Company Collection glass negative. View full size.
  BUY PRINT    October 2, 1922. Washington, D.C. "Ford Target Computor. Capt. H.E. Ely." An electro-mechanical approach to the aiming of large artillery pieces. National Photo Company Collection glass negative. | Click image for Comments. | Home | Browse All Photos