Offering these three International Correspondence workbooks on Advanced Mechanical Drawing by D C Royce - volumes 1 & 2, and Gear Trains and Cams by ICS Staff; published by the International Textbook Company. Light tan soft paper covers, good+ condition, no tears or scribbling, light soiling. Pages are good++ condition, no tears, stains, or scribbling. Lots of drawings and illustrations throughout. Nice reference books. Shippping to continental US addresses will be $5.00