May 15, 2014· Atlas Horizontal mill. ... Mar 18, 2014 #1 I located a horizontal mill, model MF, ser. number 000556, for sale about an hour away from me and am curious if anyone would have information they might be able to share. ... LJP found another Atlas Hoz'l. Mill and contacted me if I wanted to buy the other. So today I went to his shop and did the deal!