Pattern Drafting Books

I have a weakness for vintage pattern drafting books. They are an invaluable tool for understanding how vintage clothing is constructed and serve as a source of design inspiration. I recently found this book, Drafting Men's and Boys' Overalls by Harry Simons, on eBay. I was surprised that I was the only bidder, thus I was able to buy the book for a surprisingly low price. This book was published in 1925 and features drafts for work pants, coveralls and overalls.

The cover of the book

A diagram for "combination overalls" or as we know them today, coveralls.