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I do accept Mr Diamonds assessment of this coin

It looks to me like like small parts of the rim formed the "denticles". This is especially evident on the coin at about 3 o'clock, where the denticles just get started with a thin sliver of metal.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz