Up for sale a 1950s Vintage Atomic Reactor with Battery Set, made by Linemar. The Steam Engine Atomic Reactor comes with all of the pieces and the original box. BONUS... this set seemed to be used as science project, a handwritten essay along with a science project title tag was found at the bottom of the box. We were not able to test the item so there is no guarantee all of the components will function. Other than the box, the entire set is in great condition.