Continuity mistake: When Klink does a walk through in the barracks, he turns to face Hogan in front of Schultz. As he does, the end of his riding crop pushes against Schultz's lower chest and sticks. When the camera cuts the crop is free and well clear of Schultz.
Go Light on the Heavy Water - S1-E9
Continuity mistake: The boys are looking out the window at the mysterious truck. When the camera looks at them from behind, there's a building right in front of them.
Movies Are Your Best Escape - S1-E8
Continuity mistake: Hogan takes the movie camera from Klink right side up. The next second, it's upside down. Then when Hogan goes to dunk the camera in the water, the lenses are pointing to his right. In the close up, they're facing his left.
The Return of Major Bonacelli - S4-E25
Continuity mistake: Klink poses for a picture in quarter profile of the right side of his face for Bonacelli, who is actually getting a shot of the guns. Later, you see the picture, and Klink is fully facing the camera.
The Great Brinksmeyer Robbery - S2-E18
Continuity mistake: When Hogan is trying to get the woman drunk, they take their first sip of brandy and put their glasses down. Hogan's is full, and he switches the full one for the empty one. He picks up the empty one with his right hand. When the camera cuts to a wide shot of the two of them, it's in his left hand.
Drums Along the Dusseldorf - S3-E30
Continuity mistake: At the end, when Hogan and Schultz are admiring the Indian headband sent by Carter, Klink comes walking out behind them. As he stands in the door, you see Klink fold his hands in front of his waist as Hogan is talking. After Klink starts to talk, the camera cuts to a close up of him and he suddenly has his riding crop under his arm.
Everybody Loves a Snowman - S3-E14
Revealing mistake: When Hochstetter goes to open the snowman, you can see the plug is a poorly disguised piece of wood, as well as the piece of metal around the opening in the snowman.
Continuity mistake: Burkhalter and Hans Spear are seated at the table in Klink's office and Burkhalter pours brandy for himself and Spear. After the camera goes through several quick cuts, you see the shot glasses empty without having been moved.
Factual error: The guard delivering the Russian captive in the tunnel at the start of the show has a paratrooper M1 carbine with a bayonet lug. Bayonet lugs were not attached to M1 carbines until after the war.
Revealing mistake: As the scene opens, the camera starts on a shot of the guard tower's roof. As it pans left and down into the yard, over the hill on the left side of the shot you can see a modern crane structure and the corner of a building in the distance.
Continuity mistake: When Schultz comes over to talk to the boys, they open the truck door that has a map on it in chalk. They erase it, and go to close the the door on the right side of the shot. When the camera angle changes, they're closing the truck door again.
Funny Thing Happened on the Way to London - S3-E5
Revealing mistake: When the staff car enters the camp, you see a set of tire tracks leading up to, and stopping at, Klink's position. When the car comes in, it precisely follows the tracks, suggesting previous takes.
Continuity mistake: As Schultz comes in, Klink has his left hand on his forehead. As Schultz is talking, Klink starts to raise his head, his hand very close to his forehead. When the camera cuts to a close up, his hand is below chin level.
Heil Klink - S2-E22
Revealing mistake: After Browner gets out of the staff car and is going inside, as the camera pans to the left following him, you see the Desilu Studios water tower.
Heil Klink - S2-E22
Continuity mistake: After the phone call leading Klink to believe Hitler is coming by, he stands and goes to Hogan. As he stands over Hogan, he is gesturing with his left hand. When the camera angle changes, he's using his right hand.
Revealing mistake: When the boys are working on the fence, when the camera is on Hogan, you can see a modern metal building in the distance.
A Klink, a Bomb and a Short Fuse - S2-E8
Continuity mistake: The lapels of Schultz's jacket have yellow rectangles where the insignia of rank are. Normally, he has four eagles on them meaning senior Sergeant. In the close ups close to the end, the top piece is missing on the right lapel.
A Klink, a Bomb and a Short Fuse - S2-E8
Other mistake: After Burkhalter gives Klink the order to help disarm the bomb, the camera cuts to Hogan and Klink. Between them and over the barracks, you can see the Desilu water tower.
How to Win Friends and Influence Nazis - S3-E7
Continuity mistake: In the long shot of the hotel room, the boys are lulling Schultz to get him to sleep. In the long shot, his right hand is holding the rifle. In the close up, it's barely draped over the rifle.
Six Lessons from Madame LaGrange - S5-E22
Continuity mistake: When Hogan is talking with Lily Frankel before the double agent comes over, Hogan is lifting his beer. When the camera goes to close up, he's lifting it again. Also, in the long shot, the beer is down about three quarters of an inch from the rim. In the close up, the beer is nearly full.
Answer: It's a comedy, not a documentary.
stiiggy
Perhaps it was counterfeit. There are numerous episodes where they deal in counterfeit monies.