The nasal helmet was a type of combat helmet characterised by the possession of a projecting bar covering the nose and thus protecting the centre of the face; it was of Western European origins and was used from the late 9th century to at least c. 1250.
Helmet of Saint Wenceslaus, Prague
The knight at the centre is wearing a flat-topped helmet. Murder of Thomas Becket, manuscript c. 1200
The Spangenhelm, or segmented helmet, was a popular medieval European combat helmet design of Late Antiquity and the Early Middle Ages. They are often contrasted with Eastern lamellar helmets.
A surviving Spangenhelm, 6th century (Kunsthistorisches Museum, Vienna)
Spangenhelm (iron), Migration Period - Museum of the Cetinska Krajina Region - Sinj, Croatia
Sarmatian warriors with Spangenhelms, Trajan's Column (around 110 A.D.)
warriors in the Kizil Caves, following the events of 552 CE Turk uprising and the subsequent Turk expansion. 2nd half of the 6th century CE. The helmet is a characteristic pear-shaped segmented helmet of the Turkic type.