# The Hallmarking (International Convention) (Amendment) Order 1987, Schedule THE: PORTUGAL


Gold
375
585
750
Lisbon Assay Office
Oporto Assay Office
Silver
800
830
925
Lisbon Assay Office
Oporto Assay Office
Platinum
950
Lisbon Assay Office
Oporto Assay Office

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Source: https://www.legislation.gov.uk/uksi/1987/1892/schedule (the official version)
Page: https://openlegislation.uk/hallmarking-international-convention-amendment-order-1987/schedule
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.