Classic Shimano 6 speed SIS indexed shifers. Made in Japan in 1987. Double/triple chainwheel model (left shifter is not indexed so does either). These mount on a traditional handlebar stem with a 22.2mm vertical section.
Shimano Tourney SL-RS35 6 Speed SIS Index RevoShift Right Twist Shifter
SHIMANO TOURNEY 6 SPEED SIS REAR DERAILLEUR RD-TY18 WITH / WITHOUT MOUNTING BOLT
NOS, SHIMANO SL-A452 VINTAGE BICYCLE DOWNTUBE SHIFTER SET, 6 SPEED SIS, BRAZE ON
Vintage Shimano SL-S434, gear levers, down-tube braze-on, 6 speed SIS/Friction
