The Night of the Amnesiac - S3-E22
Continuity mistake: As Gordon interrogates Crotty, Crotty raises his cigar to his face twice.
The Night of the Amnesiac - S3-E22
Continuity mistake: When amnesiac West emerges from between the buildings, it is dark outside, but when he encounters the cowboy assaulting the woman, it is now suddenly broad daylight.
The Night of the Amnesiac - S3-E22
Continuity mistake: In the opening scene, West is shot and falls off the stage coach. He falls to the ground with both arms stretched out horizontally. As the stage coach leaves, his left arm is positioned along side his body. One of the villains throws West's hat, and it lodges between his left hand and body. When West is found unconscious, the hat is resting on his left shoulder.
The Night of the Death-Maker - S3-E24
Continuity mistake: Towards the end of this episode when West gets into the casket, the width of the head area is wider than the foot area of the casket. There are only two circular hand grips on a side. When the two monks are carrying it to the furnace, the casket is symmetrically shaped with the head and foot areas being the same width, and there are three round hand grips on the side. Right before the third freeze frame when the monks are in front of the furnace, the casket is back to the original shape with the head area wider than the foot area.