A bascinet helmet - the most common knight's helmet at the end of the 14th and beginning of the 15th century. Initially hidden under the great helmet, in later years it served as a foundation for the visor.
Bascinet helmet is a term used to describe several types of head protection used by medieval knights. A characteristic feature of this type of helmet was the fact that it was well attached to the head. It originated from a secret helmet worn together with an earring hood under a great helmet. Eventually, he replaced the bulky and heavy great helmet, and gave rise to helmets such as visor and sallet. It was made out of one piece of metal which made it very durable and blow-resistant.