I use to buy those treasure chests of all kinds of good to junk coins on ebay, and i pretty much got rid of all of them except for a few interesting ones i kept. Found this and have no idea what it is and if its worth anything. It appears to be silver, weights 2.3 grams, or 0.0810 oz., and about 11/16 in diameter. Any help is appreciated!
Maybe 1293 AH? (1876) Numista link. Edit: Wrong mint. One above was Constantinople. I rotated it so you can see the regnal year on the obverse more easily. See that "١٧" below the tughra? That's year 17 = 1892. Here's my revised guess from Numista.