I have a prefifties or fifties oil dispensor that was designed to fill quart canisters. I would say the tank is close to 50 gallons, the draw tube is all brass with cast iron fittings forming the neck. The unit is in excellent shape, very few dents if any. What is somthing like this worth? I also have a very old fire extigusher probably from the twenties. Has origanal wooden mounting box. Again, what is somthing like this worth?