Martin MB-2 (NBS-1) reproduction in the Early Years Gallery at the National Museum of the United States Air Force in Dayton, Ohio. Closeup of the cockpit, showing the flight and engine controls and instruments. The bombardier's compartment is forward of the cockpit.
USAF
U.S. Air Force photo <a rel="nofollow" class="external autonumber" href="https://media.defense.gov/2015/Dec/04/2001322413/-1/-1/0/151202-F-IO108-001.JPG">[1]</a> from the <a rel="nofollow" class="external text" href="http://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/197395/martin-mb-2-nbs-1/">fact sheet</a> on the museum website.