Bellow photos of our Douglas 2 3/4. On the crankcase is stamped 1915 but engine number speak 1917. As here was solved most probably remains of 1915 Douggy were bring it back to Douglas facctory during WW1, from this 1915 remains new machine were assembled in 1917 and send back to front. Bellow as it was found and how it is preserved, just with little clean.