Historically accurate and authentic design Made of 18 gauge steel Suitable for reenactments, high-end costumes or collection, or a perfect gift The Celtic Mortefino made by NauticalMart is an accurate replica ornate based off historical research and authentic in its design. This incredible helmet traces back to the 5th century BC and takes its name from a Celtic burial area in northern Italy. This helmet was used for about 400 years by Celtic and Roman soldiers. Our version is made of 18 gauge steel and comes with three ring embossed cheek guards. The knob at the peak could hold plumes, crests and feathers. This helmet is fully functional and wearable. Internal circumference is 22-24 inches. This is a great addition to your collection, a great companion to a high-end costume or to simply impress your friends!