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A practical treatise on the steel square and its application to everyday use : being an exhaustive collection of steel square problems and solutions, "old and new", with many original and useful additions, forming a complete encyclopedia of steel square knowledge, together with a brief history of the square, and description of tables, keys and other aids and attachments (1903)

Hodgson, Fred. T. (Frederick Thomas), 1836-1919 · Riverside, Ill. : Radford Architectural Co. · leaf 95

An illustration from A practical treatise on the steel square and its application to everyday use : being an exhaustive collection of steel square problems and solutions, "old and new", with many original and useful additions, forming a complete encyclopedia of steel square knowledge, together with a brief history of the square, and description of tables, keys and other aids and attachments, 1903, leaf 95
Fig. 53 … ROOFING Fig. 55. A hip roof with two corners out ofsquare is given as an example, the dimensions of THE STEEL SQUARE 93 which are: Width, 15 feet; rise of roof, 5 feet;

Carpenters' squares · Architecture, Domestic · Equerre de charpentier

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