Thanks Artur - it really is a nice photo. The bike looks typically war time or just after, with the veteran style fork, triangulation to the steering head, 1915-on stand pivot location, and, especially, what looks like a Dixie magneto. We were discussing carburettor and magneto levers in another thread. On this bike they are definitely the flat pancake style, AMAC for the double lever and probably Bowden for the magneto. Just the thing for 1915-on.
Leon
