A bit of research revealed that the metal disc visible in the one image is a Rechenpfennig (store card counter) of J.J. Habelt, Nuremberg, Germany. These counters were commonly exported to the Middle East and North Africa (and likely elsewhere) where they were perforated and used as ornaments. I believe they date to the first half of the 19th C. Of course, this does not mean that the horse or its other components are of that period. The counters were often combined with furnace-wound beads from the Fichtelgebirge region of Bavaria.