A fantastic vintage 70s Chorus / Vibrato unit, made by Carlsbro in England (Nottinghamshire, if I'm not wrong).
 
A beast of a pedal, dating from a time when units were mains-powered (no need for a battery/PSU, here).
 
It has just come back from a full service by Coopersonic, Nottingham (the best in the business), is fully functional and wholly without issue.
 
I was told that the chip in this pedal is rather desirable. Beautifully rich chorus tones and a true Vibrato effect. It does a 70s chorus sound very well and also has utility for those seeking a low-fi/Mac Demarco sound. 
 
In great cosmetic condition for its age and a testament to how well-built these pedals were - solid as a rock.
 
Coopersonic replaced the plug during the service for safety, it is now sporting a brand new plug with a generous cable length.