This fragment is the lower leg of a very small figure. The stone is black serpentinite with blue-green mottled coloration on surface. Object Register identifies this as "c". .
From Nubia (Sudan), Kerma, K III 2(1)a. 1914: Excavated by the Harvard University–Boston Museum of Fine Arts Expedition; assigned to the MFA in the division of finds by the government of Sudan.
Harvard University—Boston Museum of Fine Arts Expedition