Original industrial trade vintage catalog for CLYDE IRON WORKS, INC. General office and works was located in Duluth, MN. Manufacturers of field tower excavators. The excavator is adapted for levee building and digging drainage ditches. Simple in construction, fast in operation. Pictured is a complete tower and buckets in digging positions. Disbound from a large 1916 industrial catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro industrial equipment library. Page is detached and may contain a small amount of residual glue on edge.