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Brad Mohr · @bmohr
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Checking rock for radioactivity using a Geiger counter, Kibblehouse Quarry, Perkiomenville, Pennsylvania. June 1957.

Scanned from a 35mm Kodachrome slide.

#geigercounter #quarry #perkiomenville #pennsylvania #kodachrome #oldphotos

Last updated 1 year ago
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