Coin silver
A lower US standard than sterling — 900 parts per thousand.
| Property | Value | Authority |
|---|---|---|
| Fineness | 900 parts per 1,000 [1] | § 23.5(b)(3) |
| US legal requirement | The words "coin" or "coin silver" may not be used unless the article is at least 900/1,000ths pure silver. [1] | § 23.5(b)(3) |
| Tarnishes | Yes [1] | § 23.5 |
Sources
- 16 CFR Part 23 — Guides for the Jewelry, Precious Metals, and Pewter Industries — U.S. Government Publishing Office (16 CFR Part 23)