These bangles are made of chrome-nickel alloy with a 750 hallmark.

These coins show only slight inconsistencies in the minting. However, an XRF analysis shows that the alloy used does not meet expectations. .
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Here we have once again a gold-plated silver chain that has been stamped 585. A surface analysis also yields this result. This means that the chain must be sanded to detect the silver substrate....
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