Radiation Dosage

For Fission Product Radiations

Front View
This calculator measures 4½ inches in diameter. This calculator has a copyright date of 1951.
This was developed for the Connecticut State Office Of Civil Defense, they were available for sale
at a cost of one dollar each.
It was deveoped By William C. Orr at the University of Connecticut
 Department of Chemistry in Storrs, Connecticut.

Back View
Direction for use are printed on the back.

This calculator was obtained with the help of  Dr. Paul Frame of Oak Ridge Associated Universities'
Health Physics Historical Instrumentation Museum.

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