I have two Atlas lathes. The older one's serial no. is D1215 no s pat. date on guard and square house type on off switch is May 16 1933. It has the zamak cross slide the compound has been brazed back together. I'm going to retrofit to the newer post type cross slide way too much flex in the zamak one. the newer one is ser. V 11603 S. The history on it is my better half's grandfather purchased it new and used it in his auto repair shop in north Mo. until he closed it and went to work at Mac. in Stl. in the late 50's or early 60's. This is the lathe that I learned what not to do on! Will try to post picture's when I get the how too's of that figured out.