Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers
A self-instruction manual in mechanical drawing by Joshua Rose, published by H.C. Baird in Philadelphia in 1889 for apprentices, draftsmen and machinists working without a teacher. Line plates show orthographic projections in end, side and top view, lettered construction lines, intersecting cylinders developed into flat patterns, and hatched screw threads and gear teeth.










































































































































































































































