Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 17
Fig. i. (5) Instruments. Pocket Book Set, shown by Fig. 2,recommended as a first-class medium-priced set of instruments.It contains … Fig. 2. A Compass, 5} long, with fixed needle-point, pencil, penand lengthening bar; a Spring Bow Pencil, 3 long; aSpring Bow Pen, 3 long; a Spring Bow Spacer, 3 long; INTRODUCTION. 2 Drawing-pens, medium and small, i Hair-spring Divider*5 long; a nickel-plated box with leads.
