IWM have some interesting photos from the Focke-Wulf company archives, presumably appropriated in 1945. Arado Ar 64E fighters D-IBUZ and I-IBAP (c/n 0128) are known to have been built by Fw and the location is assumed to be their factory at Bremen - Neuenland airport. The nearest aircraft is almost certainly D-IDAM (c/n 0130), not confirmed as Fw-built. The radial-engined Ar 64 and inline-engined Ar 65 were produced in limited numbers. Photo from: Imperial War Museums