On the disk see Strange, Caphtor/Keftiu, 135-36; on the crests see Strabo 14.2.27. The circular shields used by most Sea Peoples point to the Aegean world. where they replaced the body shield in the thirteenth century: Dothan, The Philistines and Their Material Cultutre (Jerusalem, 1982); on other armaments see Sandars, Sea Peoples, 88-95 ...
