Please ID This Round/Coin

It is not a coin,I think it is considered a silver round. What size is it?
John1

With no weight, and an odd fineness (I assume ".950" is a fineness mark), and dime-sized, I'd be reluctant to call it a "bullion round". It's also obviously not a counterfeit, since it doesn't appear to be trying to fool anybody into thinking it's a real dime.

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"Millennium" is often mis-spelled "millenium". The one-N version has become so common it is approaching the status of "alternative spelling", even though most dictionaries continue to insist that only the double-N version is correct. However, its prominent presence on the coin clearly implies a production date for your piece of somewhere in the late 1990s, when all things millennial were fashionable.

However, "pluribus" has definitely been mis-spelled. In no versions of that word is it spelled "plurieus". Those are two separate Latin words; I believe "e plurieus unum" is a rather mangled way of saying "from more than one" - which may be a coded message from the item's manufacturer about the source of the silver.

That is not a 950 fineness mark; it is part of "1950", the "1" being very weak.