Yep, it's another MXR Dist+ clone, but back when I was a kid I couldn't afford "name brands".
The Coron series enabled a 14-year-old to buy effects pedals in about 1980-ish. Ah . . . good times . . . good times . . .
As analogguru's schematic site shows, there is very little difference between the Coron and the MXR. The bias divider and the tantalum cap values being the most obvious - sonically, I don't think they are too far apart. Others may disagree, but I'm biased - these Corons were my first pedals; my first love!