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The Boy Mechanic: Volume 1 - 700 Things for Boys to Do by Popular Mechanics Co.
page 26 of 996 (02%)
--Contributed by W. A. Scranton, Detroit, Michigan.



** How to Make a Watch Fob [12]

The fixtures for the watch fob shown--half size--may be made of
either brass, copper, or silver. Silver is the most desirable but,
of course, the most expensive. The buckle is to be purchased. The
connection is to be of leather of a color to harmonize with that
of the fixtures. The body of the fob may be of leather of suitable
color or of silk. Of the leathers, green and browns are the most
popular, though almost any color may be obtained.

Make full size drawings of the outline and design of the fixtures.
With carbon paper trace these on the metal. Pierce the metal of
the parts that are to be removed with a small hand drill to make a
place for the leather or silk. With a small metal saw cut out
these parts and smooth up the edges, rounding them slightly so
they will not cut the leather or silk. Next cut out the outlines
with the metal shears. File these edges, rounding and smoothing
with emery paper. The best way of handling the decorative design
is to etch it and, if copper or brass, treat it with color.

For etching, first cover the metal with black asphaltum varnish,
on the back and all the parts that are not to be touched with the
acid. In the design shown, the unshaded parts should not be etched
and should, therefore, be covered the same as the back. Apply two
coats, allowing each time to dry, after which immerse the metal in
a solution prepared as follows: 3 parts water, 1 part nitric acid,
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