I am offering for sale this Bowser (Service Station Equipment Co.) wall hanging thermometer. It measures 7.5 inches square and is framed in what I believe is yellow bakelite. The top right inside corner of the bakelite frame has a small chip taken out as seen in one of the closeup photos. I would guess by Bakelite sheet metal and the phone number on the face that this thermometer dates back to the 1920s or 1930s. Overall in very good working condition. $450.00 includes free shipping in the continental U.S.