Gold hallmarks from 1986 on a gold object. A hallmark is an official mark made on an item of precious metal to guarantee the quality of the metal. In the past this was done by guilds,and later by assay offices. Hallmarks usually indicate the quality,who made the item,and the year of marking. The mark at left is that of the maker (MSC),Mark Coleman. The four marks at right are (from left): the quality mark (crown and 750 gold quality,ie. 18-carat gold); the assay office mark (here an anchor mark for the UK city of Birmingham); and the year mark (M) for the year 1986 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Terry, Sheila |
Taille de l’image : | 3642 px × 2428 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |