Compton, Alfred G. (Alfred George), 1835-1913 · New York : J. Wiley & Sons · leaf 39
points too long. If the taper a extends beyond a. , Fig. 17, it will weaken the hook. Be careful not to burn the points. Finish them smooth, cold. Then, heating one end to redness, lay it on the horn at the middle of one half, or a little nearer to the middle Fig. 17. of the piece, as at o, Fig.… … It is not possible to mark out your work with rule and square. You must estimate without the
Metal-work
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.