This US Oak Ridge Associated Universities (ORAU) site is entitled the Health Physic Historical Instrumentation Section Museum Directory of the ORAU. It has a large collection of information on this subject and many interesting related topics. Very pictorial and cross-related information. Click on above link to view the main site with its dozens of additional links to various topics and from there to sub-links to much, much more information. A specific example of the detail provided is US Civil Defense Signage,
“Oak Ridge Associated Universities (ORAU) provides innovative scientific and technical solutions to advance national priorities in science, education, security and health. Through specialized teams of experts, unique laboratory capabilities and access to a consortium of more than 100 major Ph.D.-granting institutions, ORAU works with federal, state, local and commercial customers to advance national priorities and serve the public interest.”
