Compton, Alfred G. (Alfred George), 1835-1913 · New York : J. Wiley & Sons · leaf 155
first and afterwards a new and fine one and trying the surface in all directions with a short thin-edged straight-edge while working, and with- out removing the piece from the vise for the pur- pose. When this surface will bear every test, proceed to the next — the opposite base. Since this is to… … proper height, and then cut down close to the mark. The rectangular faces being too rough to show a fine mark, may be first filed smooth enough for this purpose. To avoid injuring the finished base in this operation, use the false jaws of lead or brass. Be careful, in this
Metal-work
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
