"This was the most elaborate Atomic Energy educational set ever produced, but it was only only available from 1951 to 1952. Its relatively high price for the time ($50.00) and its sophistication were the explanation Gilbert gave for the set's short lifespan. Today, it is so highly prized by collectors that a complete set can go for more than 100 times the original price.I was a child in the 1950s when these sets were manufactured. The search for uranium was a minor fad for a number of years. I remember my father had a Geiger counter, and we wandered various places in northern Minnesota searching for radioactivity. I had a couple Gilbert sets, but this one was certainly well beyond our family's budget at the time.
The set came with four types of uranium ore, a beta-alpha source (Pb-210), a pure beta source (Ru-106), a gamma source (Zn-65?), a spinthariscope, a cloud chamber with its own short-lived alpha source (Po-210), an electroscope, a geiger counter, a manual, a comic book and a government manual 'Prospecting for Uranium.'"
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