The cervelliere is a round, close-fitting steel skull-cap helmet. During the late 13th and early 14th century it was worn on its own, or worn over a maille coif, or worn under a maille coif, or worn under a great helm (with or without the maille). Quite versatile, eh? By the 1330's, the cervelliere had evolved into the bascinet, but versions of the cervelliere were worn as "secret helmets" under large hats or under military issue head coverings from the Landsknect times of the early 1500's up through the Cavalier days of the 17th century. 14 gauge steel with an adjustable leather liner and chinstrap. Weighs about 3 lb 6.5 oz. Made by GDFB - Get Dressed For Battle.