This commemorative coin celebrates the Journey of Fiona the hippo at the Cincinnati Zoo & Botanical Garden. Fiona was premature and weighed only 29 pounds at birth. The normal birth weight range for a Nile hippo is 55-120 pounds. Fiona is the smallest hippo to ever survive. She is now healthy and thriving. Minted from .999 Fine Silver in Cincinnati, OH by Osborne Coinage, America's oldest private mint. 39 mm in dimater. Comes packages in capsule and engraved wooden Fiona keepsake box.