You have no idea how hard it was to find a chart that showed the Irish Hallmarks so a definitive date can be placed on a Peterson.
I stumbled across their Hallmarking section on their own website HERE
Jim, maybe this link might be a good idea on the Pipedia section A Peterson Dating Guide; A Rule of Thumb
I stumbled across their Hallmarking section on their own website HERE
Jim, maybe this link might be a good idea on the Pipedia section A Peterson Dating Guide; A Rule of Thumb