Martin MB-2 (NBS-1) cockpit. (The control yoke has been removed or moved out of the way. The extra altimeters at the upper right and their labels show that this aircraft may have had experimental superchargers installed.)
USAF
U.S. Air Force photo <a rel="nofollow" class="external autonumber" href="https://media.defense.gov/2006/Dec/19/2000526018/-1/-1/0/061219-F-1234S-025.JPG">[1]</a> from the <a rel="nofollow" class="external text" href="http://www.nationalmuseum.af.mil/Upcoming/Photos/igphoto/2000526018/">image gallery</a> on the website of the National Museum of the United States Air Force.