I

Copper, 24.24 parts; silver, 27.57 parts; gold, 48.19 parts.

II

Enamel Solder.—Copper, 25 parts; silver, 7.07 parts; gold, 67.93 parts.

III

Copper, 26.55 parts; zinc, 6.25 parts; silver, 31.25 parts; gold, 36 parts.

IV

Enamel Solder.—Silver, 19.57 parts; gold, 80.43 parts.

Solder for 22-Carat Gold

Gold of 22 carats, 1 pennyweight; silver, 2 grains; copper, 1 grain.

For 18-Carat Gold

Gold of 18 carats, 1 pennyweight; silver, 2 grains; copper, 1 grain.

For Cheaper Gold

I

Gold.l penny-weight; silver, 10 grains; copper, 8 grains.

II

Fine gold, 1 pennyweight; silver, 1 pennyweight; copper, 1 pennyweight.

Silver Solders (see also Solders)

I. (Hard.)—Copper, 30 parts; zinc, 12.85 parts; silver, 57.15 parts.

II

Copper, 23.33 parts; zinc, 10 parts; silver, 66.67 parts.

III

Copper, 26.66 parts; zinc, 10 parts; silver, 63.34 parts.

IV. (Soft.)—Copper, 14.75 parts; zinc, 8.50 parts; silver, 77.05 parts.

V

Copper, 22.34 parts; zinc, 10.48 parts; silver, 67.18 parts.

VI

Tin, 63 parts; lead, 37 parts. FOR SILVERSMITHS:

I

Sterling Silver.—Fine silver, 11 ounces, 2 pennyweights; fine copper, 18 pennyweights.

II

Equal to Sterling.—Fine silver, 1 ounce; fine copper, 1 pennyweight, 12 grains.

III

Fine silver, 1 ounce; fine copper, 5 pennyweights.

IV

Common Silver for Chains.—Fine silver, 6 pennyweights; fine copper, 4 pennyweights.

V

Solder.—Fine silver, 16 pennyweights; fine copper, 12 grains; pin brass, 3 pennyweights, 12 grains.

VI

Alloy for Plating.—Fine silver, 1 ounce; fine copper, 10 pennyweights.

VII

Silver Solder.—Fine silver, 1 ounce; pin brass, 10 pennyweights; pure spelter, 2 pennyweights.

VIII

Copper Solder for Plating.—

Fine silver, 10 pennyweights; fine copper, 10 pennyweights.

IX

Common Silver Solder.—Fine silver, 10 ounces; pin brass, 6 ounces, 12 pennyweights; spelter, 12 pennyweights.

X

Silver Solder for Enameling.— Fine silver, 14 pennyweights; fine copper, 8 pennyweights.

XI

For Filling Signet Rings.—Fine silver, 10 ounces; fine copper, 1 ounce, 16 pennyweights; fine pin brass, 6 ounces, 12 pennyweights; spelter, 12 pennyweights.

XII

Silver Solder for Gold Plating. —Fine silver, 1 ounce; fine copper, 5 pennyweights; pin brass, 5 pennyweights.

XIII

Mercury Solder.—Fine silver, 1 ounce; pin brass, 10 pennyweights; bar tin, 2 pennyweights.

XIV

Imitation Silver.—Fine silver, 1 ounce; nickel, 1 ounce, 11 grains; fine copper, 2 ounces, 9 grains.

XV

Fine silver, 3 ounces; nickel, 1 ounce, 11 pennyweights; fine copper, 2 ounces, 9 grains; spelter, 10 pennyweights.

XVI

Fine Silver Solder for Filigree Work.—Fine silver, 4 pennyweights, 6 grains; pin brass, 1 pennyweight.

Bismuth Solder

Bismuth, 3 ounces; lead, 3 ounces, 18 pennyweights; tin, 5 ounces, 6 pennyweights.