From Okito on Magic, page 137 and originally described in The Sphinx, March 1951, the effect is as follows: Magician shows three different colored empty tubes that nest within one another and clear Plexiglas base. After showing each tube absolutely empty, they are nested together on the base and the magician magically pulls a tremendous number of silks or production items out of the previously empty tubes. This then can culminate with the production of a live dove. This was manufactured in a limited production of only 30 sets. With instructional CD. Condition: Excellent.