Marking on a gold Menes bracelet is XIX Jewelery Marking on inside?

My Husband has a bracelet a thick gold nugget bracelet and the only marking on it is XlX does this mean anything.
what do you mean by fine jewelry

I was searching online for an answer and all I found pertaining to that marking is that it means it was made in the nineteenth century. Fine old gold seems to usually have the century it was crafted, in Roman numerals.

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