By Harold Hall. Published 2009. Covers comprehensive range of data which is required in the metal working workshop, and by those designing a wide range of engineered items, tools and machines. It provides, in a single concise volume, data that is only otherwise available by reference to many different sources or more expensive publications. For those involved in restoration work, the book also includes details of items not now used, and for which data is not easy to locate. Softbound, 217 pages, black & white illustrations.