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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 145

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 145
tpoint. If it is 6 inches, the number of feet is10 feet 6 inches. If a board is 10 feet long and15 inches wide proceed the same as before, andyou will find 12 feet 6 inches, and so on. If theboard is 16 feet, simply double the result of 8,etc. The figures on the tongue are brace meas-ure. You will…

Carpenters' squares · Architecture, Domestic · Equerre de charpentier

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