Roman bronze cavalry parade helmet

This is the Crosby Garrett helmet, found by a metal detectorist in Cumbria, England.  It was auctioned at Christie's for $3.6 million.

These helmets were not for combative use, but worn for hippika gymnasia, (cavalry sports events). The polished white-metal surface of the Crosby Garrett face-mask would have provided a striking contrast to the original golden-bronze colour of the hair and Phrygian cap. In addition, colourful streamers may have been attached to the rings along the back ridge and on the griffin crest.

Further details at the Christie's listing.