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Home : Assay Office London


Overview
History and Definition


The testing and marking of jewellery and silverware to guarantee the precious metal content of an article has been carried out by the Goldsmiths' Company since 1300. The process is known today as hallmarking, which originally meant 'marked at Goldsmiths' Hall'. The techniques of sampling, testing (assaying) of the precious metal content (fineness) and marking have altered over the centuries, but the principle of providing a guarantee for manufacturers, importers, retailers, and the eventual purchaser, remains the same. It is one of the oldest forms of consumer protection.
Assay Office Mark
Assay Office Mark

Assay Office Mark
Assay Office Mark
Publications

Hallmark: A History of The London Assay Office
John S Forbes
ISBN 090629020 0

Available from the Goldsmiths' Company, published price £35 plus £3 postage and packing.
Click here to view our library of publications.

Hallmarks booklet: Cost £1
Hallmarks pocket card: Cost £10 per hundred


OPENING TIMES

New premises open at Heathrow Airport
Assay Office London has opened a new hallmarking facility situated within the secure premises of Brink’s Ltd., Global Services Division at Heathrow Airport.
The new London premises offers the full range of hallmarking services which take place at Goldsmiths’ Hall, including hand, press and laser marking.
Download details here or for further information click here

Greville Street Premises
Our new sub-office at 17 Greville Street, Hatton Garden offers our usual range of hallmarking services click here for more information

Assay Office London is open Monday-Friday, 8.00am-5.00pm. It is closed on Bank Holidays.

RETURN OF GOODS BY POST
Completed packets are returned by registered post. Two levels of compensation are available: £1000 and £2500.

ENQUIRIES AND CONTACT INFORMATION

For enquiries and further information, please contact:
Deputy Warden
Assay Office London
Goldsmiths' Hall
Gutter Lane
London EC2V 8AQ
Tel: 020 7606 8971
Fax: 020 7814 9353
E-mail:

Hallmarks pocket card
Hallmarks pocket card


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In This Section
- Gem Testing at
Assay Office London
Current Hallmarks
Getting Something Hallmarked
Hallmarking Services
The Hallmarking Process
Antique Plate Committee
Other Services
- Student Hallmarking Packages

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