|Description:||This historic 1947 image, provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH), and obtained from the Nat. Institutes of Health’s Photographic Unit, depicted a metallic arm band on a person’s right wrist, which contained a photosentitive film. Analyzed on a regular basis, this simple device was intended to reveal whether or not the wearer was being subjected to a high level of radioactivity. The higher the levels of radioactivity to which the wearer was exposed would be revealed as the film’s changes in appearance. The other wrist bore a wrist watch mainly for comparative purposes. See PHL #9587 for a look at the band alone.|
The NIOSH Historic Photo Collection began as the “picture file” of the Industrial Hygiene Division of the U.S. Public Health Service (USPHS), c. 1930-1960. It is a unique collection of mid-20th Century images of American workers and workplaces and documents occupational safety and health research of that era. The collection consists of approximately 1,000 original photographs and schematic drawings.