These were used as part of the linkage to switch between play and rewind. Mounted in the spoolbox. Rod is inserted in each end and held in place by a setscrew.
Later Aeolian Player Piano Tempo Box Slide Valve Spring
Later Aeolian Player Piano Tracking Pneumatic Spring
Vintage Lot Of 15 Aeolian Player Piano Rolls (BB)
Aeolian Player Piano Duo/Art Ukelano 149095 FREE SHIPPING!!
NOS Later Aeolian Post 1960's Player Piano Mystery Spring
NOS Aeolian (1960's and later) Player Piano Wind Motor Slide Valve Pushrods
