Fineness
Fineness is the proportion of pure precious metal in an alloy, expressed in thousandths: 750 ‰ means 750 grams of pure gold per 1,000 grams of alloy. Fineness is verified by assay (touchstone, analysis), never on the strength of a hallmark alone.
Related coins
- Napoléon 20 francs
- Half-Napoléon 10 francs
- Belgian 20 francs Leopold II
- Swiss 20 francs Vreneli
- Italian 20 lire
- British sovereign
- Half sovereign
- Krugerrand 1 oz
- Gold Maple Leaf 1 oz
- Vienna Philharmonic 1 oz
- Gold Britannia 1 oz
- American Gold Eagle 1 oz