Here is an ER 100 I picked up a while back at a yard sale, along with a puck of vintage Williams soap for $15. Replaced the knot with a TGN 20mm synthetic, polished up the handle and painted the lettering. After: And now the red one has a stablemate, I think they make a great looking pair!
Great job! Threads like this make me want to finally get around to restoring some of my vintage brushes.
Beautiful restore!! Does anyone know how many different colors the ER 100 bottoms come in? I don't think I've ever seen a blue bottom before...