The bullet (a steel ball bearing) can be made to rise and fall inside a tube. The ball and the tube may be examined, but the audience is unable to repeat the miracle. Complete with instructions. The supplier is unknown, but a torn label on the base of the box suggests it has come as a sample from Japan.
Item Details
Size | Length of tube 40mm. |
---|---|
Date | Probably mid 20th century. |
Key Phrases | Apparatus |
Ref no | N3358 |