This is believed to be a Roman boxer from 1,800 years ago. Well, a teeny marble bust of a boxer anyway. Archaeologists found the statue, just six centimeters tall, in Jerusalem's City of David. From CNN:
The archaeologists (from the Israel Antiquities Authority) believe a merchant family from the eastern part of the Roman Empire most likely passed down the "precious object" through the generations until the fourth or fifth century, when an unfortunate family member had it with him at a public building, perhaps a hostel -- and an earthquake struck...1,800-year-old marble head unearthed in Israel
Two tiny holes in the figurine suggest it was used as a suspended weight together with a balance scale, the archaeologists said.