Here is a Corona Coffee Bubbler Sign from the Commercial Importing Company located in Seattle, WA. The Commercial Importing Company was an importer of Corona Coffee also known as Royal Corona Coffee. This Corona Coffee Sign is from the 1930’s era and is in very good condition for it’s age.
This Royal Corona Coffee Bubbler Sign was made by Biolite Inc. located in New York, NY. It is approximately 12″ wide and made of reverse-painted glass mounted in a backlit metal body; the glass lettering on the top is filled with a heat sensitive liquid that bubblers from the heat of the light bulbs. Click here to view a video of this Biolite sign operating.