I saw this at the MET in NYC on my last visit there, it's the trophy you won in an ancient MMA competition called the Pankration (wrestling, kicking and boxing no holds barred).
Trophies for winning a grappling match were a lot cooler back then.
DT5498.jpg
Trophies for winning a grappling match were a lot cooler back then.
DT5498.jpg