This punch indicates the manufacturer or sponsor of the article. The Makers mark was introduced as a way to trace the product back to its source.
The component of the set of hallmarks that denotes that the silver is warranted to be of the stated standard. All articles made by Celtic Frames are made of Sterling Silver which contains 92.5% pure or fine Silver.
The Assay Office Mark
This punch identifies the Assay Office at which the Silver was tested for purity and given its stamp of guarantee.
The 1916-2016 Centenary Hallmark
This was designed by The Company of Goldsmiths in Ireland, and depicts the Book of Kells Trinity Knot.