Examples are characterized by caps made from overlapping lamellar scales, in addition to a brow plate, cheek guards, and camail.
[6] They are categorized by Heiko Steuer with 'other helmets of eastern origin,'[3] and have been principally found in southeastern Europe.
This is suggested both by the discovery of parts of such helmets in Italy, and by the discovery of a brow plate displaying the inscription VICTORIA D[OMINO] N[OSTRO] AGILUL[FO] REGI, ("Victory to our lord, king Agilulf") which names Agilulf, a Lombard king who ruled from 591 to 616.
[3][7] The plate also contains a figural scene showing the seated king and, on his left and right, warriors who themselves are wearing comparable plumed helmets.
[9] This type of helmet appears in sculptures on pillar capitals at Ṭāq-e Bostān and Behistun, and on the Anahita coinage of Khosrow II (r. 590-628 CE).