The vast majority of the puzzles are mechanical puzzles rather than word or mathematical puzzles.
Cut the postcard into 3 pieces. Where does the 16th card go when the position of the two lower pieces are reversed? The postcard advertises Martinka & Co., a magic shop in New York City.
- The card has been slightly cropped. The cropped size is 135mm x 85mm.
- The front of the card states that it is Copyright 1907 by T. L. DeLand Jr. The card probably dates from 1907 to the 1920s.
- Martinka, T.L. DeLand Jr.
- Vanish, advertising items
- P378 W10
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