The Mysterious Ball & Brass

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The Mysterious Ball & Solid Brass
Performer displays a SOLID cylinder of brass (not a hollow tube) and a steel ball which can be thoroughly examined. The ball is placed on top of the solid chunk of brass and quite mysteriously begins to sink visibly into the golden metal. The ball sinks almost out of sight, then returns to rise until it reaches the top of the cylinder again! Finest quality brass, steel ball and complete instructions.
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Price $32.00
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