https://www.ebay.com/itm/1339167586...=true&nordt=true&rt=nc&_trksid=p2047675.l2557 This one eBayed for $1000, but it's much better condition than yours. Melt is $870, so I'd say closer to that.
I'm uneasy about the way the details kind of sink into the field, the shape of the lettering, and what looks like finning around the rim. Have you weighed and measured it?