Dr. Daley’s Last Trick c. 1954 (The Dai Vernon Book of Magic, pg 210) is a very popular effect which has spawned many variations. The effect itself also has much in common with Milbourne Christopher’s Red and Black Aces c. 1948 (Tarbell Course in Magic Vol. 5).
Many purists are going to stick with the non-gimmicked card version. But what I love about Jon Allen’s version is that it is easy to do and you clearly show the two kings in your hands even after you have supposedly placed the fives on the table. Then Bam! they switch places – hard to be that clean with normal cards. This is pretty much my goto item if I want to show just one trick to someone. Clean, easy and very visual!
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