I'm always wrong, but don't embarrass easily wink and might get this started

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How did you date it to 1882 Lloyd?
I think the first proof string is in the middle of the flats and would be 1887-1896; with the bore 13 = .710" - .718"
I think is was proved again 1896-1904 with a bore of 13/1 = .719" - .728" for 1 1/8 oz. MAX m
It appears to carry a Birmingham date code of TB for 1968; for 3 TONS with bore .729"
The CIP London Proof 2017 with bore 18.5 mm

I think the barrels are 3 Iron. Can you post a close up where the pattern contrast is most apparent?

Last edited by Drew Hause; 12/22/23 06:36 AM. Reason: Enlarged image
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