Manufactured in the early 50's in a slow process totally lacking in quality control. Released to the public in 1952. Dorky geekiness was recognized at an early age when it was noted that I had read all the books in the first grade library before starting school (Mom was a schoolteacher)
Built a 20KV generator with no moving parts other than dripping water in Jr High. Many burnt fingers were a foretaste of greatness to come. Owned every Science set Gilbert ever made!