Show electric eye ss Is a perfect watchman TELLER L I 1 IF W nj HE famous westinghouse electric eye or photoelectric photo electric cell watchman thas has been perfected to such a degree that westinghouse has placed a 20 1 bill in nu an exhibit at the worlds fair air in chicago free roe to anyone who can get g it the catch in the proposition Is that as the band Is pushed through a roll min lature paying tellers cage it interrupts a beam of 0 light which in turn caust causes the photoelectric photo electric cell to raise a barrier instantly to protect the treasure it Is guarding |