Believed to be Barton Phoenix but not 100% sure. It has separate oil compartment in fuel tank. Very well made in good order. The item "Barton Phoenix rg500 tr750 tz spondon Harris alloy racing fuel tank" is in sale since Tuesday, October 27, 2020.This item is in the category "Vehicle Parts & Accessories\Motorcycle Parts\Air Intake & Fuel Delivery\Fuel Tanks". The seller is "centralgarage1234" and is located in hawarden. This item can be shipped worldwide.