Radioactive screen. | |||
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Radioactive screen. I'm pretty sure this screen was made by gluing the same ore described in the previous sample onto some cardboard. The manual that came with the chemistry set this was in (see previous sample description) has instructions for how to use the screen to expose photographic film. Source: eBay seller 6tomcat Contributor: Theodore Gray Acquired: 10 January, 2003 Price: $58/chemistry set Size: 1" Purity: <1% | |||
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