EFFECT: A brass tube with screw cap is shown empty, threaded closed & a paper seal affixed to the cap and left in full view. The sealed container is now placed within a second, larger tube, which is capped and also sealed with a paper sticker. This doubly sealed unit is held by a spectator. A previously borrowed dollar bill’s serial # noted, and bill having been marked, is caused to vanish. The spectator holding the nested, sealed tubes is instructed to break the seals & remove the contents. The identical marked bill is found within the second sealed tube.