There is a clear shot of the money in the wallet with the word 'STUDIO' on the bills; the "money" is fake.
When Beaver is explaining what had happened to him Ward is wearing a wind breaker jacket. After being at home all evening Ward comes up to the boys room at bed time and he is still wearing the jacket that he had worn earlier in the day when he went to the dentist. Even though he has been inside the house since before lunch time.