[GJim]

> It is definitely not legal tender.

"Legal tender" doesn't mean what you think it means.

It has nothing to do with what coins/notes are in circulation or commonly accepted.

https://en.wikipedia.org/wiki/Legal_tender

Bullion coins are typically marked as 'legal tender' (of a nominal value relative to the precious metal content) as doing so exempts them from sales tax in most jurisdictions..... because they are technically "legal tender" (coins) and not bullion.

e.g. British sovereigns are still produced and have a "legal tender" value of £1. Though the gold content of one is currently about £800 last I looked.