This book analyzes jewelry hinges and hinge-like mechanisms in a manner never done before in a single volume. It has become a classic, and is our best seller. Along with history, generics, classes of hinges, construction and guiding principles, sections include: design, tube making, hinge pins (force-fit, riveted, upset, tapered, cotter type, tubing, square, threaded, stud), hinge types (basic, thick-walled, locket, bracelet, box, block, cold-rolled, tab, cast and milled), lubrication, catch systems, hidden hinges, alternative, cast hinges and solving design problems. Good index and table of contents. 112 pages, over 200 line drawings.