Antique Turkish Tray - Ottoman?

[Megan]

Here is another piece I have been researching for quite a while.  What I know personally is only that a family member acquired this in Turkey (as is) in (roughly) the 60's. 

This is a large tray 11.5".  For obvious reasons I think it's quite old and then in researching it seems to resemble Ottoman pieces.  The problem is...what are real Ottoman pieces.  I would think genuine Ottoman pieces might be difficult to find but I think there are a lot of pieces listed as Ottoman that are not really Ottoman.  In any event, that has made this one even more difficult to narrow down.  I even believe the rip and repair on this piece is interesting and may even help to identify it but I have really hit a wall in researching it.

So, 11.5" (bowl type) tray. On the back is a mark of some kind.  From the parts of the mark I can see, it looks like raised circles in a spiral shape.

I hope the images say what I couldn't and I appreciate any help or hint someone might have.

Thanks.

Megan

[frogpatch]

Turkey is well known for producing relics. I am not saying that this is not very old. I am saying that you need to Google "Turkish Copper or Brass Plate" into "images" and do some cross checking.

[Megan]

Hi again frogpatch.
That is actually almost exactly how I start searching.  The only pieces I have found with some similarities are a couple of museum pieces.  By similar I mean style, look of the metalwork, and the symbols on the piece.  Having said this, I sure will try the search terms you suggested and see what comes up in a far more broad search.
Thanks!