vintage technical handbook of arc welding, old engineering welder's handbook

Lot of two old technical handbooks on arc welding for welders, engineers and machinists... Procedure Handbook of Arc Welding - Design and Practice, published by the Lincoln Electric Co.

These are a 1935 third edition and a 1940 sixth edition with lots of great photos, illustrations and drawings.

The third edition has a name on the front endpaper and the sixth edition has a cracked front joint and is missing a few pages off the front (the front endpaper, title page etc. to the first page? of the preface).