Can't remember which nation it was, but among the coins of many countries that my daddy left to me I recall seeing some that had the edge imprinted...BTW, the traditional knurled edge that we're used to seeing on many US coins came about when they were still real silver, & some clever folks would shave a little off the edge of each flat edged coin they got a hold of, until they had enough nearly pure silver to melt down...the ridges were added to put a stop to that...

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