Although we already covered the Joker’s costume garments in order of chronological appearance in the movie, as with the ties, I’ll briefly mention the various hats the Joker wore throughout the film.
Jack Napier wore what appeared to be a black hat, similar to his later Joker hat (again, nice foreshadowing).
An auction listing for the Joker’s trademark hat featured numerous, gorgeous photos.
These included a couple lovely photos of the hat interior, in which the “Golden Coach”/”Dobbs” label was visible.
An additional auction listing featured even more images of the hat.