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Hallmarks for Gold & Silver
Traditionally, the hallmarks are 'struck' using steel punches. Punches are made in different sizes, suitable for small and large Items. Punches are made in straight shank or ring shank, the former for normal punching with a hammer, and the later used with a press to mark rings. The problem with traditional punching is that the process of punching displaces metal, causing some distortion of the article being marked. This means that re-finishing of the article is required after hallmarking.
Laser marking Hallmarks
A new method of marking using lasers is now available, which is especially valuable for delicate items and hollowware, which would be damaged or distorted by the punching process. Laser marking also means that finished articles do not need to be re-finished. Laser marking works by using high power lasers to evaporate material from the metal surface. Two methods exist, 2D and 3D laser marking. 2D laser marking burns the outline of the hallmarks into the object, while 3D laser marking better simulates the marks made by punching.
7carat - 14 carat - 18 carat - 22 carat
925 Sterling-958 Britania
his is denoted by the Lion Passant mark in England
Brittania standard was introduced in 1697, and sterling silver was reintroduced in 1720. Brittania standard is slightly purer than sterling, 95.8% pure rather than 92.5% pure.
The Assay Office marks - from left to right, the Leopard 's Head of London, the Anchor of Birmingham , the Yorkshire Rose of Sheffield , and the Castle of Edinburgh.
The Assay Office Mark for Ireland is the Harp- Scotland is the Thistle
Example of Hallmark Identification
Sponsor or Maker's Mark, i.e Manufacturer, Retailer or Importer, each of there would have ther own style of Hallmark.
The Assay Office Mark, where it was identified in the case its Sheffield.
The Lion is Silver.
Date Letter in this case its 2000
Hallmark Date Letter Chart