Pre-dating the later and heavier Model 305 and lighter (and somewhat similar) 310 this early Jones & Shipman "Universal and Tool and Cutter Grinder" was a particularly well-made and compact machine and, with suitable accessories, capable of surface, external and internal cylindrical and tool and cutter grinding. The example shown may date from WW1 and would originally have been offered with a wide range of extra to extend its versatility even further..