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The Hallmarks appear to read: Maker Michael Keating II reg 1851, Sterling .925 for Dublin, City Mark for Dublin, Duty Mark Queen Victoria, Date Mark 1848. (Open to correction I am just a beginner in reading hallmarks)
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Gorgets were abolished by decree of King William IV in 1830. However, they were permitted to be worn by officers in England up to Christmas 1831 and by those abroad until 1832
At some time that must have been recinded as a serving officer has informed me that a gorget may still be worn by the Duty Officer
So all sorts of conflicting issues
Any thoughts or comments would be very helpful. Thanks in advance.