Lot of 4 Ancient objects including: A Islamic silver plaque

Lot of 4 Ancient objects including: A Islamic silver plaque, probably second century of hijrat (800-900 AD), little bit bended otherwise very fine, (1.76 g, 20 mm); Bronze Islamic plaque, second hijri century (800-900 AD), lovely piece and very fine (1.80g, 20mm); Bronze ring head probably pre-mongol, lovely pattern on obverse and very fine choice (3.54g, 17mm).