Satyrus, thank you for figuring out the dating of this piece! Thanks much for your time!
It was found in Western Ukraine. Most probably it was a war booty gained by a barbarian around
limes, and then brought
home to sarmatian land.
Shawn, may it was not rolled...may be it was just bent in order to brake it. I suppose that barbarian just wanted to transform this piece of bronze into smaller fragments... may be for arrow heads, etc.. until he was bored with it and wasted it as it is.