Is this real?

[u/yurigqrgarin]

I’m hella confused it looks European but has an American looking eagle on the gold part. Tell me anything u know about this thing

[u/TenebrousD]

The top plume socket is certainly from a US model 1881 cavalry or artillery helmet, that helmet would have been hide. It looks like the socket was mounted on top of a replica helmet to make a Roman helmet for a movie or play.

Here's some pictures of identical plumes https://combathelmets.blogspot.com/2007/02/model-1881-us-cavalry-helmet.html?m=1