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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 149

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 149
146 PRACTICAL USES OF square around to 12 and mark 3, 6 and 9, and you have it divi-ded into four equalparts. Fig- 93 you maynot come in con-tact with every … JjL -Lt *ft 13 Fig. 93 Fig. 92 day in carpentry work,but you would in pho-tography. If you have an object13 inches by 18 inches, ■—and you wish to reduceit to 11 inches long, how wide would it be? Drawa line from corner to corner; place the blade on11, and where the tongue strikes the diagonal…

Carpenters' squares · Architecture, Domestic · Equerre de charpentier

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