width 12.5 centimeters and length 21.5 centimeters
Loans:
S1996-1997 #10: Department of Anthropology (UC Berkeley)/John Desmond Clark (March 14, 1997–April 9, 2007), S2001-2002 #19: Integrative Biology Department (UC Berkeley)/Timothy D. White (April 10, 2002–present), and S2005-2006 #2: Integrative Biology Department (UC Berkeley)/Timothy D. White (April 10, 2002–unknown)