I have been tagging jewelry all day – and have come across some filigree pieces that appear to be silver and on one I see the numbers “660” or “666” – kinda hard to make out.
Am familiar with 925 silver but these others have me baffled. Are there different grades of silver from other countries?
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thevintageflea Reputation: 251 See thevintageflea's booth |
Thought this explanation for silvery jewelry grading was [URL removed]
[URL removed]
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irishonebac Reputation: 238 See irishonebac's booth |
I’m no expert but know that in India they used to use 800 for what we call 925. I found a piece once marked .375 and after much research found out it was English and a low grade. Get yourself a good magnifying glass and give it a good look and then go see what you can find at a Google Search.
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johngermaine Reputation: 576 See johngermaine's booth |
Grade 660 is a precipitation hardening austentic stainless steel widely used for high temperature fastening and bolting materials.
Its relatively high nickel content for a stainless steel means that is sometimes categorized as a nickel alloy.
The grade is commonly used for operating temperatures up to 700°C (1300°F).
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MONTROSE Reputation: 8354 See MONTROSE's booth |
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