STUDER Manufacturing Program Catalog. Catalog contains a little information and specifications on Studer RM 250, RHU 500, RHU 750 Cylindrical Grinding Machines and PSM 150, PSM 250 Profile Grinding Machines. I believe this catalog is from early 1970's and Studer machines are made in Switzerland. Condition is Good. Catalog is 4 pages. Shipped with USPS First Class Package.