This terracotta but of Philadelphia physician and early study of Ice Age animal remains was created by William Rush around 1812 to 1813. Details are found here: https://www.pafa.org/museum/collection/item/caspar-wistar. This sculpture was 3-D scanned on Friday, March 13, 2020 with a Structure scanner attached to an iPad Mini 4 through a glass case. This prevented the back of the sculpture from being captured. The original is on exhibit at the Pennsylvania Academy of Fine Arts.