I appreciate that this could be a tall order for what is a fairly generic looking pickup, but I have this unidentified pickup in a parts bass and I'm wondering if anyone can guess at where it might have come from. It has fibre flatwork, grey and white plastic coated lead wires and unbevelled alnico magnets. The coils are wrapped with black cloth tape and there are no written markings anywhere on it. It looks to be a few years old and the tops of the poles are slightly polished from finger contact. It measures 10.1K when wired into the bass (so probably a touch higher when disconnected). It sounds very much like a typical vintage style P-bass pickup. Any ideas?