Comment by buellerbueller

If you ever find yourself in Cincinnati, Ohio, one of the most underrated things there is the "American Sign Museum" which has many examples of this form of signage, as well as the history of advertising signage. They even have a neon glass signworks on-site.

Ironically, the informational signage on the exhibits is somewhat lacking, so I recommend taking the free guided tour, which is about 45-60 minutes in length.