This is the original version of Dial-X invented by U.F. Grant and Schuyler Reynolds and what a clever and useful device it is. Small enough to fit in the pocket, amazing enough to carry with you. It is a quite stunning to think that 70 years on it still works perfectly and has not lost any of it’s charm.
The idea for Dial-X was so unique that Grant & Reynolds filed and received a USA Patent for the idea: #US2639923A, so when you see the Patent Pending sign on this effect they were not kidding, it was titled Mechanical Puzzle and granted on May 26, 1953.
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