It´s logical after some time to include face protection in the helmets. Specifically there exists several examples in artistic representations of conical skull helmets with facial protections.
This one is based in the images of the Romanesque portico of the Santa Maria de lo Real church, in Sangüesa (Navarra). In the exterior archivolt can be seen the representation of some jobs of the medieval ages including two armed men. One of the is wearing a cabasset like this one, with a visor as wide that almost show the cheeks. Some other very similar can be seen in codex if the age.