Just after the Michael Moriarty (Barrett) gets helped out by Eastwood in the town, he looks around and sees Eastwood is gone. Then you see him lift himself in the buckboard, just after he gets in, he moves his hat and you can see he has a cast or bandage on his hand. He and Eastwood ride to the mine and when he stops to talk to the guy with the beard, you can see the bandage is gone. This shot is at the beginning when Eastwood first appears. About 19 minutes into the movie, and it's gone three minutes later.