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How to Read Gold Hallmarks
Karat marks, fineness numbers, assay offices and the plating codes that look like gold but are not — a field guide to the tiny stamps that decide what a piece is worth.
Marvin Buth4 min read
The IsItGOLD? Journal
Know what your metal is really worth
Guides, research and product updates on precious metals, hallmark decoding and AI-powered valuation — written by the team behind IsItGOLD?.
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