Central Illinois Public Service Company Ice Box

I have an old golden oak ice box. It has 1 long door on the left with enamel inside with 3 rows of hooks and there are 2 doors on the right. Inside the top right compartment seems to be sheet metal and the bottom right compartment connects to the left so it is enamel as well. The drain tube is still intact. All seals are in excellent shape as well as the hardware. The original inspection sticker is on the inside left door in prefect condition and there is a maintenance sticker on the top right door that has some wear to it. It will hold 100lbs of ice. There is a brass plate on the outside that says Central Illinois Public Service Company. I am hoping to find more information on it's origin, history, and worth. I have not been able to find anything online about this piece. Thank you.