February 19, 1925. "M.S. Strock measuring radio lengths at the Bureau of Standards." View full size. 4x5 glass negative, National Photo Co. Collection.
  BUY PRINT    February 19, 1925. "M.S. Strock measuring radio lengths at the Bureau of Standards." 4x5 glass negative, National Photo Co. Collection. | Click image for Comments. | Home | Browse All Photos