Airco DH Rudder Bar

This rudder bar was used on a British Airco DH aircraft which flew during the war; it is not yet clear which type but it was most likely the DH.2, DH.4 or DH.9.  It measures 27-3/4 in. or 70 cm in length.  The inked and numbered A.I.D. inspector's stamp on the wood stands for Aeronautical Inspection Directorate and, based on this, we know that this rudder was used in a British-made aircraft, not one of the American-made aircraft which were based on the British design. The metal is additionally stamped with "A114" within a triangle.  The previous owner stated that their ancestor was a veteran who removed this rudder from an aircraft that crashed during the war.