helmet cheated/stolen

[marcos]

Yes. This is a Quadripartite Helmet like Burgh Castle. Better condition than Burgh Castle, too. When you zoom in you can see the connecting band and rivets in the middle of the bowl that allow you to distinguish it as a Quadripartite Ridge helmet.

I wonder if those are the only two quadripartite berkasovo type helmets currently known. None else?

Too bad my friend lost it, it would be a further piece available for scientific community.
Nevertheless, luckily presently we have some chances to regain it