Useful Grinding Data (Pocket Edition)
Undated but circa 1970. 82pp stapled booklet, in laminated, illustrated card covers (very gently rubbed at edges, tiny chip on spine). Internally neat, clean, bright and tight. Catalogue and grinding data tables from the Universal Grinding Wheel Company covering Marking Systems, Mounting, Pulley Speeds and Diameters, Grits and Grades, Spindles, Grinding Wheels etc.
