5 7/8 inch square by 7/8 thick tan wall thermometer with the Hurley Dental Laboratories in St. Paul, MN. The phone number is CEdar 8776 and the address is 601 Hamm Building, St. Paul 2, Minnesota. The best information I could find with that phone sequence, and address dates it prior to 1945. The indicator bar covers all the way across the 4 1/2 inch dial with one side in blue COOL and the other side in red WARM. The WARM temperatures start at 70 and go up to 120 while the COOL temperatures start at 70 and go down to 20. There are a couple places in the frame where the plastic is broken off. The backing plate is tin and has a few scratches but no cracks, dents, or broken sections. The temperature seems to be stuck in one position but might only need a good cleaning. If it was in working condition thermometers of this age and type usually list for $45 to $70.
