This is lush! There's a whole heap of seasick wobbly goodness on tap, all with that warm bucket-brigade goodness. The 'modulation' knob on the back is a wet/dry mix, plus the 'pre-delay' control allows for some seriously wacky sounds. This one has a few knocks but is in great shape with the original box. 

Model: Maxon CS-550 Stereo Chorus Pedal
Made: Japan, recent model
Type: chorus, analog
Power: 9v DC negative supply (not included)
Switching: true bypass
Equivalent new street price (approx): n/a
Mods: none
Accessories: original box & manual
Condition notes: used, no major marks, very good condition