Designing, Cutting and Grading Boot and Shoe Patterns, and Complete Manual for the Stitching Room: By an Expert of Thirty Years. E-book. Formato PDF Charles B. Hatfield   -  Forgotten Books, 2017  - 

The simplest, most positive, most practical method was invented by myself nineteen years ago — a method so simple and so correct that when followed out and accord ing to instructions, ten different people in ten different localities will all arrive at identical results.