Portuguese Assay Office Marks

The parts available in the dprata.com online store are certified by INCM and legally marked, when applicable.

“The INCM Assay Offices provide this guarantee by verifying the legal touch (per thousand of precious metal contained in an alloy) and applying the hallmark together with the responsibility mark, manufacturer mark or equivalent”.

The application of marks is only mandatory on pieces weighing more than 1 gram.
For any questions about the authenticity of the brands, we have made the INCM website available for verification: https://www.incm.pt/portal/uco_marcas.jsp

Table with drawings of the legal INCM Punch Marks:

Convention Marks

The sale in the national territory of goldsmith's artefacts marked under the Convention on the Control and Marking of Articles of Precious Metals (Vienna Convention) is authorized.

Link to the Bank of Portugal where you can check the daily price of gold, silver, platinum and palladium: https://www.bportugal.pt/taxas-cambio?mlid=828