Polish Assay Offices

Polish Assay Offices

Assay Offices test and mark jewellers' precious metal alloy articles (gold, silver and platinum metals). They also offer Hallmarking Law surveillance services at processing plants and for the sale of precious metal alloys.
All Assay Offices must report to Główny Urząd Miar - GUM (Central Office of Measures).

RAO Warsaw

RAO Cracow

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