The helmet, which is decorated with copper rosettes and a feather swivel, is known as a cabasset. These conical helmets were often used across Europe between 1550 and 1700.

Divers searching the sea floor of Italy found a medieval battle helmet from the 15th to 17 century that likely belonged to the Spanish World Oddly shaped ‘stone’ on sea floor off ...

The reconstructed helmet — which consists of a cap, cheek pieces, a mask and a neck guard — is made primarily out of iron and copper alloy, with accents of silver, gold, tin, enamel and garnet.