Colonial button?

[Digs2much]

I found this one piece button at a colonial era site....it's a little bigger than a Large Cent,has the loop but no backmark. Seems like I might have seen one like this before somewhere....? The "coins" look to be Roman. Does anyone have a clue?? Thanks!

 

[CRUSADER]

Diva commemorative of a lady and Roma/Constantinopolis like bust types, so as you say Roman imitations.

Need to see the reverse?