I apologize in advance for any duplication in recent discussions; but imp doesn't search well.

I have seen red imps from Morriss(sp), Ludo and Case. Why was this logo so often duplicated? Were there other manufacturers of Red Imp? Are there more than 132 and 133?

I have also seen Black Imp and simply Imp. What is an Imp and why is it so popular in razor naming?

I like to find a Case 132, Morris 133, and a Ludo 132 as I have the counterpart of the pairs already to make a 6 day set