The Bascinet Helmet It evolved from a type of iron or steel skullcap, but had a more pointed apex to the skull, and it extended downwards at the rear and sides to afford protection for the neck.
The bascinet is differentiated from the cervelliere by having a higher, pointed skull. By about 1330 the bascinet had been extended lower down the sides and back of the head. Within the next 20 years it had extended to the base of the neck and covered the cheeks. The bascinet appeared quite suddenly in the later 13th century and some authorities see it as being influenced by Byzantine or Middle-Eastern Muslim helmets. The bascinet, without a visor, continued to be worn underneath larger "great helms" (also termed heaumes).