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 in Philadelphia and London in 1883 for machinists, apprentices, and draughtsmen working without a teacher. The plates are line drawings: orthographic end, side, and top views tied by dashed projection lines, lettered construction points, hatched sections, gear teeth, and screw threads, useful as technical linework and diagram grids.
