This was a 3-seat Naval aeroplane of the immediate post-war era (served through ca.1925).  It was a development of the DH.9 design (imagine, if you will, a DH.9a with a ventral "bulge" with windows, and you'll have an idea).  While there are several images I've been able to locate from the 'net, I was wondering if anyone knew of an available 3-view?

Given the basic information, and a good side view in the recent SAM magazine, I guess a 3-view could be developed from a DH.9 3-view.