After the huge success of the Trick Mules a new color version was later released and renamed the Trick Donkeys, which continued to keep people perplexed the same was as the first version.
This particular card is a Commemorative Edition celebrating 145 years (1871 - 2016).
The cardboard used to create the puzzle cards is the same that Sam Loyd used when he first published them. That way you get the cards the way Sam Loyd wanted people to enjoy them.
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