Walter C. Knack building, just outside of downtown.
Hey Brothers Ice Cream was made in Dixon from about the 1920's up until the early 80's. I'd never heard of the company (outside of this old sign) until recently, when I read a novel that was set in Chicago in 1932-the main characters undertake a road trip to the Quad Cities and stop for some Hey Brothers ice cream in DeKalb.
I had thought that the company was no more, until I decided to have some ice cream at the Kane County Flea Market a couple of weeks ago-it was Hey Brothers! I was shocked-clearly the company had simply moved somewhere else. It was pretty good too, and I'd certainly have some again.