These are one of the best chorus pedals on the market I reckon. Maxon are so badass that they just made their own analog bucket brigade style chips to power this blue beauty. It does subtle tasty analog chorus, covering all that CE-2 style ground, or you can dime the knobs and the little wet/dry mix on the top and get absolutely munted to wobbly oblivion. 

Model: Maxon CS-550 Stereo Chorus 
Made: Japan, 2005
Serial: 056VSC055
Type: chorus
Power Input: standard 9v DC centre-negative (supply not included)
Accessories: none

Condition notes: used, no major marks. Tested and fully functional.
Overall: very good condition (8/10)