The slide is out of focus, but this is a fine example of Cobbler’s Femur from the Jamestowne Society’s website.
They’ve used the condition to identify the remains of the cobblers. The body lays down extra bone in response to microfractures caused by hammering against the thigh. Similar characteristic conditions can be seen in blacksmiths and other trades and was used to identify archers on the Mary Rose.
The original display is at Written in Bone: Forensic Files of the 17th Century Chesapeake http://www.jamestowne.org/Written_In_Bone.htm