This is a original USN USMC F-4 Phantom II Radar Intercept Officer's Radar Scope Control Assembly. The RIO uses this control to identify and select targets on the radar scope. This same control was also used in the back seat of the USAF F-4 by the WSO. WSO is the weapons system officer. It is 6  x 7 x 9 inches. You can just see the top of this controller in the cockpit photo. The Phantom II was built as a US Navy aircraft and the USAF liked it so much they purchased them also. I don't believe there are any more of these aircraft flying.  Payment must be received within 10 days of auction closing unless prior arrangements have been made. Buyer to pay shipping.  If you have any questions please contact me via e-mail before bidding. Thank you for your interest in my auctions