[1] The workers in the factories consumed deadly amounts of radium due to being told by management to "point" their brushes on their lips for a fine tip.
[2] The young workers also used the radium paints to adorn their fingernails, lips and teeth to make them glow.
In 1920 the company relocated to Peru, Illinois to closer proximity to the clock manufacturer and major customer, Westclox.
By 1922 the company had moved to a former high school building at 1022 Columbus Street in Ottawa, Illinois[4] where it remained until the mid-1930s.
[5][6] Luminous Processes Inc. continued producing fluorescent watch dials powered by radium radioactivity until 1978.