A decorative bar has 3 silks hanging from it. The silk on one end is odd colored and the magician claims it is acrobatic. Placing the bar and silks behind his back and bringing it out again, the odd colored silk is on the other end. He is asked to make it go to the center. Upon striking the silks, the odd silk visibly jumps to the center.
 
CONDITION NOTES:  While we don't know the specific manufacturer, this set is presumably from the mid century.  This is the kind of prop that came from a real magic shop counter, not a factory blister pack. The rayon silk blend, simple packaging, and solid wood construction place it mid century, when props were built to last and designed to be performed.