The Audels Sheet Metal Workers Handy Book for Pattern Layout, printed in 1943, is a valuable reference book for those interested in engineering, sheet metal layout, and construction. Authored by Frank D. Graham & Edwin P. Anderson, this original book published by THEO. AUDEL & CO. contains illustrated content related to pattern layout. This handy book, measuring 6"x5", is a rare find for collectors and enthusiasts of vintage technical literature.