This is an Original Model A Ford Fuel Shutoff Valve.  I believe it was used in 1929.  The threads are in good condition.   It does not move.  I would think it might need a rebuild kit.  I lightly bead blasted the Fuel Shutoff Valve so you could see how nice it is.   The (11) pictures show the condition of the Fuel Shutoff Valve very well.  If you have any questions or need more pics just send me an email.  I always leave feedback after feedback has been left for me.  Insurance is the responsibility of the buyer.