Bluing Small Steel Pieces.

Manufacturer and builder 1, 1891

First blue the object without any special regard as to uniformity of color. Should it prove to be imperfect, take a piece of clean pith, or a piece of dead wood that will not crumble too easily, and whiten the surface with rouge without letting it be too dry. Pieces when thus prepared, if cleaned and blued with care, will assume a very uniform tint.

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