Improved Steel Ball and Tube. Adams, ca. 1950s–1960s.
A classic mechanical effect in which a steel ball is placed atop a metal tube and rises, falls, or halts in defiance of gravity. The tube may be shown and handled, yet the action remains fully under the performer’s control. Turned metal tube with matching steel ball. Includes original illustrated instruction sheet and labeled Adams box. A clean, complete mid-century example. Light wear to box and minor surface marks to metal. Very good condition.
Improved Steel Ball and Tube. Adams, ca. 1950s–1960s.
A classic mechanical effect in which a steel ball is placed atop a metal tube and rises, falls, or halts in defiance of gravity. The tube may be shown and handled, yet the action remains fully under the performer’s control. Turned metal tube with matching steel ball. Includes original illustrated instruction sheet and labeled Adams box. A clean, complete mid-century example. Light wear to box and minor surface marks to metal. Very good condition.
