Achaemenid Organisation & Equipment - Shields

Early Achaemenid armies were characterised by a number of interesting and unique shields. A large wicker shield called the gerrha or the Persian word 'spara'. A violin shaped shield protrayed on the reliefs at Persepolis and a 'pelta' which shows a Greek influence.

Link: http://members.ozemail.com.au/~ancientpersia/org_frm.html