Here is a Pennzoil Motor Oil Thermometer from the Pennzoil Company located in Oil City, PA. This Pennzoil Motor Oil Thermometer is from 1962 and is in excellent condition considering how old it is.
It is approximately 12″ and was made by the Pam Clock Company Inc. located in New Rochelle, NY. Thermometer like this one would have originally been displayed at service stations and auto parts stores to promote Pennzoil Motor Oil to customers.