Scope and Contents The documents in this collection focus on the material surrounding the creation of the Hamilton Space Clock. This includes sketches and drawings, however the bulk of the material focuses on the press and publicity around the release of the clock. In particular, there are a number of speeches and lectures given by the Hamilton employee who constructed the clock, Ralph Mentzer.Additionally, there are some photographs of the clock, Mentzer, and the inventor of the clock, Dr. I.M....