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Top of a Byzantine Ivory Casket, 11-12th Centuries
Referenced on p20 MAA-89 Byzantine Armies 886-1118 by Ian Heath & Angus McBride:
A number of 10th-12th-century ivory caskets depict figures such as these. They fairly certainly represent Asiatic mercenaries, probably Patzinaks. The apparent 'trousered' tunic is probably a long coat split at front and back for riding. Note the pointed felt or fur cap, characteristic of Patzinak dress.
The front of the Byzantine Ivory Casket The back of the Byzantine Ivory Casket