Colorsound Overdriver 1970s original Black

Legendary pedal- Great tone and lots of room for tonal experimenting in the last 15% of the drive knob where it gets exponentially crazier (if you google some online articles about it, there are good descriptions... ). As a note: you can't really use it as a boost because it's way too loud; you need to leave it on all the time, or do some thoughtful AB pedal/volume pedal routing in your pedal chain... 
In very good condition. Checked over by a vintage amp specialist before posting for sale. It has a few minor chips and scratches as you can see in the photos. The knobs are smooth. The dials have no pointers, so it looks like somebody did it with a marker at some point on the tops, but it's almost faded away. Looks like it has not been played much, and definitely not since the old days (at least not in the past 30 years); it's spent most of it's life in a box in a closet. It's from my father-in-law who was a guitar teacher, and I think he would have picked it up at a garage/yard sale during the 1980s in northern Ontario.