Helm Nasal from the staffordshire hoard.  The Staffordshire Hoard had many pieces that were fittings for helmets.  This Nasal was inspired from the finds.  3 1/2" x 1 1/2", 9 cm x 3.7 cm  split rivets for attaching to display helmet, for SCA fighting helmets, the rivets will have to be more securely attached