This vintage book contains an instructional treatise on sheet metal drafting. It aims to presents the underlying principles of sheet metal pattern drafting, with each chapter discussing a different principle in depth. With detailed illustrations and a wealth of useful, practicable information, this volume will be of considerable utility to anyone with an interest in the subject. Contents include: "Sheet Metal Drafting," "Orthographic Projection," "Drawing Instruments," "Lines," "Dimensions," "Lettering," "Titles," "Filing Circles," "The Sheet Metal Cleat," "Related Mathematics on Sheet Metal Cleat," "The Galvanized Match Box," "Related Mathematics on Galvanized Match Box," "The Candy Pan," et cetera

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