WM Otto RARE LA BREA TAR PITS Solid Bronze Mastodon Elephant 4 1/2″x2 3/4″. Very rare solid bronze Mastodon Ice Age Mammal created by William M Otto. This sculpture was designed based on restorations of skeletons excavated from the Rancho LA Brea Tar Pits by Los Angeles County Museum This piece is very detailed and signed by artist on inside of hind leg Height 2 3/4″ xWidth 4 1/2″ x Depth 1 1/2. Please see photos and feel free to ask any questions.