Nestler Total KG, Foerstner Radiation Protection Slide Rule

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Country of manufacture: Germany,            Date of manufacture: ____
Diameter: 10.5 cm,      Weight: 19.0 gms
Materials: all plastic
Scales: specialized
Front
     Outer Disk: Dose Rate (Roentgens/hr)
     Miiddle Disk: Time scale (from the onset of radiation)
     Inner Disk: Time scale (from the time of the explosion)
Back: Instructions for Use
Condition: C1 (Mint but folder not in mint condition)
Came with: Original folder (which holds rule) with instructions

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