Bench work in wood: a course of study and practice designed for the use of schools and colleges (1902)
Goss, W. F. M. (William Freeman Myrick), 1859-1928 · Boston, Ginn & company · leaf 29
Square is shown by Fig. 31. The beam A inthis case is of wood, faced by a brass strip C to protect it from wear. The blade B, at right anglesto the beam, is of steel. The gradua-tions on the blade, together with itsthinness, make this square more con-venient for short measurements thanthe rule.…
Woodwork (Manual training)
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