Boss CS-1 Compression Sustainer 1981 Made in Japan Silver Screw Working ACA10000

Boss CS-1 Compression Sustainer 1979 Made in Japan Silver Screw Working ACA 8700

BOSS CS-2 Compression Sustainer Guitar Pedal Vintage MIJ Japan Serial 487400

BOSS CS-1 Compression Sustainer Guitar Effect Pedal MIJ #9700 DHL or EMS

BOSS CS-1 Compression Sustainer 1979 MIJ Silver Screw Skeleton Switch 8400

BOSS CS-2 Compression Sustainer Guitar Effects Pedal MIJ 1983 #519 DHL or EMS

BOSS CS-1 Compression Sustainer Tested Made in Japan

BOSS CS-1 Compression Sustainer 1981 W/Box Guitar pedal Made In Japan ACA