June 26, 1929. Washington, D.C. "Bureau of Engraving and Printing." Note the many mercury-discharge lamps. National Photo glass negative. View full size.
  BUY PRINT    June 26, 1929. Washington, D.C. "Bureau of Engraving and Printing." Note the many mercury-discharge lamps. National Photo glass negative. | Click image for Comments. | Home | Browse All Photos