December 23, 1936. Washington, D.C. "Bureau of Standards. Standardization of card colors. Kenneth Kelley judging colors of dyes." Whatever you labor at, Shorpy wishes you a happy Labor Day. Harris & Ewing glass negative. View full size.
  BUY PRINT    December 23, 1936. Washington, D.C. "Bureau of Standards. Standardization of card colors. Kenneth Kelley judging colors of dyes." Whatever you labor at, Shorpy wishes you a happy Labor Day. Harris & Ewing glass negative. | Click image for Comments. | Home | Browse All Photos