1975 Yamaha YZ 250 360 Alloy Fuel Tank. I can't find any dings either.
It looks like the underside may have been repaired at some point. Fill area may not be stock either. Please check the pictures for condition. The threads on the petcock mount will need to be repaired. Also fits the 1974 models. The item "1975 Yamaha YZ 250 360 Aluminum Gas Fuel Tank also fits 1974" is in sale since Tuesday, October 27, 2020. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Body & Frame\Gas Tanks". The seller is "dirtdealer726" and is located in Gagetown, Michigan. This item can be shipped worldwide.