This is a well made trick in an early plastic, possibly Bakelite. It is really a catch – mystifying, amusing and saucy. The performer shows a natural coloured pea and three coloured ones. The performer turns round and one pea is chosen and dropped into the tube while it is held behind the performer’s back. No matter which colour is chosen, it is always the ‘natural’ pea that trickles out from the tube. Supplier unknown, possibly Davenports.