A VERY RARE POCKET ROTOSCOPE   FOLDING TIN PLATE  VIEWER WITH 2 SLIDES SHAPED AS A BOOK . THIS ONE IS APPARENTLY THE AUSTRALIAN VERSION WHICH IS RARER THE ENGLISH IS NORMALY STAMPED LONDON , CONDITION SHOWS  IS AGE BUT IN WORKING ORDER IF SLIGHLY LOSE  AND  OPTICS SEEM FINE  . WILL GRACE ANY COLLECTION SIZE FOLDED  4 "" X 1  1/2 "  ANY QUESTIONS PLEASE ASK THANK YOU FOR LOOKING .WORLDREELS .