Ring, Ball, and Rod. European, 1930s. A turned wooden ball threaded on a long nickel-plated rod is covered with a cloth. Three borrowed rings then transpose locations with the ball ? becoming linked on the metal rod, while the ball is discovered in the performer?s hand. The end of the rod must be unscrewed to remove the rings. Finely made.This effect was popular in the first half of the twentieth century. However, most versions were cheaply made of wood. This is the finest example we have encountered, and allows the trick to be performed with three rings instead of one.