Metal-work; a handbook for teachers and students (1914)
Adam, Hugh M. [from old catalog], Evans, James Humphrey, [from old catalog] joint author · New York, Longmans, Green and co.; London, E. Arnold · leaf 121
fortruth or parallelism. It usually consists of an upright pillarfixed to a heavy base, and a scriber carried in a sleeve whichtravels on the pillar. The base may berectangular (Fig. 50), with a cut out of theunder-face to reduce the bearing surface,or circular (Fig. 51). In the latter case…
Metal-work
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
