The Antique - S5-E12
Question: When Hogan gives Klink $100 for the cuckoo clock, the bill handed over was a crisp American $100 note. How did Hogan get an American $100 note? At best, in this time period, he should only have Reich Marks. And how would he have 333 Marks, 33 pfennigs? Unless he had a side businesses going, this seems unlikely.
Answer: It's a comedy, not a documentary.
stiiggy
Perhaps it was counterfeit. There are numerous episodes where they deal in counterfeit monies.