I asked around on the fleabay antique forum and in a translation forum. Nobody had any useful information about what to call it, who it was made by, or a value.
It's very well done, and like Mackaydon says, it looks pewter from the photos. There may be tiny inscription somewhere indicating wether it's silverplate, pewter, sterling, etc. Take a look with magnifier & see if you can find a tiny stamp or inscription.
If your able to identify this makers mark, you'll quickly be able to find all the information you need to know about the plate. Word of caution though, searching google images for "antique plate makers marks" or some other similar combination of search terms can be an exercise in madness as there's literally tens of thousands of images to scan.
I would post the makers mark on a collectable plate forum & see if you can get lucky enough to have somebody recognize it for u.
It does look like pewter but more than likely it's tinned copper or brass which are the traditional materials for the style. You can see some of the tinning marks in the second photo.
These are decorative chargers designed to hang on a wall they were not intended or designed to have food served on them. They are very common in the middle east markets where handwork is sold. This one is pretty but nowhere near as intricate or refined as engraved Ghalamzani work.
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