This was the most elaborate Atomic Energy educational set ever produced, but it was 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.
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 (Dagwood Splits the Atom) and a government manual "Prospecting for Uranium" which claimed to be able to help kids discover new sources of uranium and be rewarded with $10,000 from the US government.
Because the radioactive sources only have a finite life, the instruction manual came with a handy re-order form on the back cover. Unfortunately, the product wasn’t on the market long enough for those ores to degrade, much less be re-ordered.