Amazing Insight 16 Math Window Cards


Have someone a number from 1 to 16 and these amazing alder wood cards will quickly determine the number.  The secrets of these long lost cards were found in a 1942 book by Maurice Kraitchik called Mathematical Recreations.  They are also called window cards and have a fun magical edge to them.  Each card is 1.3" x 4" x 1/8" thick alder wood with the numbers and text deeply laser engraved.  Also look for our other more complex version of the cards on the website.

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  • Model: AI16
  • Shipping Weight: 0.26lbs
  • Manufactured by: Creative Crafthouse

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