Swastikas on His Hat
In a scene fairly early in the movie Joe E. Brown is shown wearing a cowboy hat. The hat has a hat band on it and there are several closeups where one can see that the band is decorated with some symbols. Most seem to be of American Indian derivation, but also several swastikas can be very clearly seen. This was apparently not an attempt at being insulting, but as the movie was released in 1932 this was just barely before it became recognized internationally as a symbol of hate.
There is also a scene early on when Brown is in a restaurant and picks up a menu with Hebrew writing and is confused. He asks another patron about that and the man tells him to just ask the waiter for want he wants and it will be brought to him. Among the things he orders and receives is bacon. Again I don't believe this was meant to be insulting, but no Jewish restaurant would have a waiter accept an order for a pork product and certainly no patron would ever be served such a thing.