Complex sentence: Grabin, working on the "ZiS-53" at Joseph Stalin Factory No.92 in Gorky, was reassigned to the Central Artillery Design Bureau (TsAKB) in Moscow, and his project was turned over to 23-year-old A. Savin.
Split into simpler sentences: Grabin, working on the "ZiS-53" at Joseph Stalin Factory No.92 in Gorky, was reassigned to the Central Artillery Design Bureau (TsAKB) in Moscow. His project was turned over to 23-year-old A. Savin.