Here we have up for sale an ORIGINAL, 1973, Hauk Manufacturing Company "Aspirators, Inspirators, & Ejectors Engineering Catalog.  Catalog has neat illustrations as well as having in-depth engineering/sales information about these products they were manufacturing back in the day (please see pics).  This also has a signed letter by the VP, Robert Schreter.  Manual is clean with NO tears or tatters and in FINE overall condition.  FREE S & H.  Thanks for viewing....Triple K