antique machinist books, old technical & drafting handbooks w/illustrations

Lot of three antique, early century technical and drafting books for machinists, engineers and millwrights... Roger's Drawing and Design, Roger's Advanced Machinist and Roger's Erecting and operating for Engineers, Machinists and Millwrights.

These books are full of great drawing and engraved illustrations. They have gilt lettered spines and embossed covers as well as gilt edged pages.

They are all published by Theo. Audel with copyrights from 1903 to 1907.

These books are in nice condition for pieces of this age. However, Drawing and Design does have some spots of fraying to the cloth cover at the edges and the cover is coming loose at the back joint.

Also Advanced Machinist has a name in pencil on the inside of the front cover.