Italian Castelli, 10.35mm double action revolver.  Serial #848.  Fair condition.  4 1/4" barrel, fixed military sights. Dark bore.  30% even blue finish that's turning brown.  Wood checkered grips appear to have been painted white some time ago.  Folding trigger, lanyard ring.  The takedown rod will not lock in place and has some indexing issues.  Should be gone over by a gunsmith before firing is attempted.  Piece of Italian police and military history here. C&R OK.