Time Element Cylinders | Lubor Fiedler

A match is hidden in one of two identical brass tubes. These are placed in your trouser pockets. Meanwhile, you are in another room. Obviously, you have no clue as to which of the two tubes the match is in—you saw nothing, felt nothing, heard nothing...

Of course, you still name the correct container!

Thanks to a diabolical principle that's completely inscrutable. Typical Fiedler...

With German instructions!