![]() continued producing fluorescent watch dials powered by radium radioactivity until 1978. a few blocks away from the Radium Dial Company in Ottawa, Illinois shortly after closing down the Radium Dial Company. Kelly opened up a new corporation called Luminous Processes Inc. At the highest point in production (around 1925), the Radium Dial Company employed around 1,000 young women who turned out around 4,300 dials each day. In 1920 the company relocated to Peru, Illinois to closer proximity to the clock manufacturer and major customer, Westclox.īy 1922 the company had moved to a former high school building in Ottawa, Illinois where it remained until the mid-1930s. The company was a division of the Standard Chemical Company based in the Marshall Field Annex building in Chicago. The Radium Dial Company was started in 1917 and was in full production of painted dials by 1918. However, unlike the US Radium Corporation, Radium Dial Company was specifically set up to only paint dials, and no other radium processing took place at the premises. The luminous paint used on the dials contained a mixture of phosphor and radium, a product that the Radium Dial Company named Luna. ![]() The resulting dials are now collectively known as radium dials. ![]() The Radium Dial Company was one of a few now defunct United States companies, along with the United States Radium Corporation, involved in the painting of clocks, watches and other instrument dials using radioluminescent paint containing radium. In most cases it is perfectly safe to wear a radium dialed watch, the danger is if you take the glass off or possible even the back (if the radium paint has crumbled and is floating loose) Having it removed should be done by someone with experience. ![]()
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