Garry Winogrand’s last Leica M4:
From the source site:
I am told Mrs. Winogrand had very strong feelings that her husband’s camera should be continued to used after his death. She sold it to a family friend, who continues to shoot it to this day. Look at the front and back of the advance side top plate, where the chrome is worn away by the grip of Winogrand’s index and thumb. hmm. I get the impression he liked this camera, but he liked shooting pics even more.
More information and images can be here.