This is a leather Hippo by Zuni.

Zuni makes leather animal characters which are soft on the outside but fully stuffed with iron pallots for weight.  They are traditionally bookends but as you can see I use my Hippo character as a door stop.  This Hippo is named Budy. Very well made and each by hand. Zuni animals have names with name tags.  I also have a tiger.  I want the Lion which has a cute lion's main around it's neck.