I have a great colored M-3721 Fred Locke with what I believe is a 7-1 marking (about 2/3 of the marking is legible). This piece has a flake on the ear and has had the top re-cemented where the glaze welded collar connected to the top. I purchased this piece over 20 years ago from Bill Rohde and have had it in my collection since - just needing to make some space. Comes complete with it's original pin and porcelain pin base (tough combination). I don't want to ship this classic piece so would like to deliver it to the buyer at Springfield. Traded!