Is that the one with the pressed steel frame (or) the cradle tubes are present and silver in color (or) usual present day frame???
The pressed steel frame doesnt have the cradle tubes and the engine is only mounted to 2 points of the frame and the cylinder (both bore and head) is supported by the 4 iron rods of the crankcase.
That frame is very rare and if you have got it, you have one of the rarest steed!!!!!!!!!