I am stumped by this hallmark, even though it is very distinctive. I suspect that the plate itself did not come from the Middle East, even though the engraving appears to show scenes from that region (Such as an image of a mosque, a naval (?) base among mountains, a government building (?), and an unidentified building). The hallmark just does not look especially Middle Eastern to me, although that is not my area of expertise so I could be incorrect in that assumption.
If anybody is able to identify the region/buildings/crest featured on this plate, that would be much appreciated as well. Thank you to anybody who may have some knowledge on this.
(I'm new to this forum, so if I did something wrong and those images do not automatically load into this post, here is the raw Imgur link: https://imgur.com/a/JduxIQm