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About Us
Introduction
History of assay offices
Mission
Team
Advisory board of jewellery
Information on articles of precious metal
Marks
Assay Office Mark
Responsability mark
How can i get a responsability mark
Legal hallmarks in Portugal
Common control mark
Official Assay Office marks from other Member States
Marking Methods
Recognition Of Portuguese Official Marks
Solidarity Mark
Services
UniqueMark®
Consumer Information
How to schedule appointments
Work Entrance
Pre-Registration
Safe Transportation ensured by the Assay Office
Administrative Services
E-Forms
Activity Certificate
Sponsor’s mark format
Sponsor’s Mark
Foreign mark deposit
NOTIFICATIONS
Private import
Service table
Pick & Go – Transport between the Assay Office and the Customs of Porto
Price and fee table
More on the Assay Office
Professional certificates
Training activitites
How can i enter for an examination
How is the professional certificate obtained
List of valuers of articles of precious metals and gemological materials
List of melter-assayer technical managers
List of rough diamond experts – classifiers – valuers
Recognition Of Qualifications
INSPECTION
Legislation
Laboratory services
News
Newsletters
FAQ
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Marks
Code:6007775
RESPONSIBILITY BRAND IMAGE 544_2026
96,73
€
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Code:6007771
RESPONSIBILITY BRAND IMAGE 540_2026
96,73
€
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Code:6007729
RESPONSIBILITY BRAND IMAGE 538_2026
96,73
€
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Other Assay Office products
Code: 1025782
A3 Mark Frame with QR Code — Vertical
13,34
€
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Code: 1025781
A3 Mark Frame with QR Code - Horizontal
13,34
€
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Code: 1024641
A4 Mark Frame
13,34
€
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