This model was derived from a scan of a hand with 4 amputated fingers. The original scan had many errors in the mesh, so I brought it into Blender and did a complete retopology of the mesh.

Original: http://www.thingiverse.com/thing:287290
The original author requested help with fixing the mesh, in order to create a prosthesis based on the model.

Update: I made the bottom of the model flat for printing. See version 2.