Here we have up for sale an ORIGINAL 1961 The Michigan Tool Company Cone-Drive Gears engineering catalog/brochure set.  Brochure/catalog set has neat illustrations as well as having in-depth information for these gears that they were producing over 60 years ago.  Two pieces are signed (please see pics).  This literature set is in nice shape with NO tears or tatters.  FREE S & H.  Thanks for viewing....Triple K