This is a early carved Wood thermometer advertising the Erker Brothers Optical Co. It doesn’t have the thermometer but can easily be replaced . Dimensions: 19” long x 4 1/2”wide x 1 1/2” deep Provenance: The Steve Howard Estate Processing and shipping within the continental U.S. $35.00 plus 1.5% replacement cost insurance. This item is in fair condition, the thermometer is missing and will need to be replaced, it’s also missing some of the brass tacks that hold the brass plate down .