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Currently viewing the tag: "2004-05"

Ultrasonic Non-Destructive Imaging of Worn-Off Hallmarks on Silver: Preliminary Results (2004-05)

On December 31, 2004 By NCPTT

The use of hallmarks on silver has a long history, dating back to at least the sixth century AD.

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Last Updated: May 3, 2013.
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Ultrasonic Non-Destructive Imaging of Worn-Off Hallmarks on Silver: Preliminary Results (2004-05)

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