Thank you John Becker! Your posts have been the best.
I have always had a hard time with water marks. Since all flavors of this design and denomination have water marks, you'd think I could figure the water mark out.
Well, I've had this stamp in Rosignol so many times, I can say with certainty that Rosignol does not leave residue, but I can't say for sure if this stamp is SLW or DLW. I do see a curved line bottom left. Or did I?
Either way, its not a coil, and thanks for helping me thru the woods.