I seem to have acquired a bulk film loader at some point in the past -- I honestly can't remember when or where -- that has some mystery B/W film in it. So I loaded 10-12 exposures into a cassette and shot them off, hoping that there would be a name in the sprocket margin identifying the film after development. Sadly, no name on the length that I developed, only the code "400-271". FYI, I developed it in D-23 1:1, having chosen to rate the film at ASA 100 and bracketing from from -2 to +3 stops. I appears the film is best somewhere between 200 and 400. I cant go develop another, longer length because Im now in SW Asia and the bulk loader is in Virginia. So its not as if Im going to be using this film any time soon, but nonetheless Does anyone know what film this might be?