The sheet-metal worker's guide : a practical handbook for tinsmiths, coppersmiths, zincworkers, etc., comprising numerous geometrical diagrams and working patterns, with descriptive text
A trade handbook by W. J. E. Crane, published in London by Lockwood and Son in 1888, written for tinsmiths, coppersmiths and zincworkers. The pictures are geometric line diagrams with lettered points, dashed construction lines and numbered divisions, showing how to lay out sheet-metal patterns for cones, bends and curved sections. A designer could borrow their clean technical drafting style and the precise construction logic behind shaped forms.
