Boeing B-29 Superfortress / Curtiss-Wright R-3350 Intake Valve. Very interesting item. The B-29 saw extensive activity during WWII but is most famous for dropping the first atomic bomb, the "Enola Gay" B-29. It would make an excellent bookshelf item for the office or home. Please note that valve shown on photo has been cleaned and polished. The valve you will receive will need to be polished (with wire brush and emery cloth) in order to look like the one on photo. Sold for display only, as is, no returns.