_c._ For MEDALS:--1. Copper, 89 parts; tin, 8 parts; zinc, 3 parts. This
alloy assumes a beautiful antique appearance by age, and takes a sharp
impression by stamping.
2. (M. Chaudet.) Copper, 95 parts; tin, 4 or 5 parts. This is also
excellent for any small castings.
_d._ For MORTARS:--Copper, 93 parts; lead, 5 parts; tin, 2 parts.
_e._ For STATUARY:--1. Copper, 88 parts; tin, 9 parts; zinc, 2 parts;
lead, 1 part.
2. Copper, 82-1/2 parts; zinc, 10-1/2 parts; tin, 5 parts; lead, 2 parts.
These are very nearly the proportions of the celebrated statue of Louis
XV.