Hallmark guide · Silver
What does Common Control Mark mean?
The Common Control Mark - a balance (scales) mark - shows that a Convention-designated assay office tested the item; Type 1 combines the fineness in parts per thousand with a shield shape for the metal. It is accepted in all member states without re-testing and is voluntary.
- Metal
- Silver
- Purity
- —
- Where
- Vienna Convention member states
- When
- Convention signed 1972, in force 1975
01
Often confused with
- The scales mark confirms an independent test, but the fineness number inside it is what sets the value.
- It is used on gold, platinum and palladium too, so 'metal' here is only indicative.
02
What a piece marked Common Control Mark is worth
Melt value $146.48. Likely cash offer $102.54 – $131.83.
92.5% fine silver7.5% copper & alloy
Broken or unmarked pieces usually sell for melt. Get two quotes and compare them with the offer range above.
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