I just noticed what looks like an imperfection on the mouthpiece near the button. I assure you, it is just a reflection in the photo. I checked the pipe several times and there is no blemish on the mouthpiece. This Dublin came out with an outstanding blast! This is a neat piece and I really like the mouthpiece. Black and dark blue in a subtle combination, looks great with the black stain. Hand cut Midnight Cumberland mouthpiece w/Delrin tennon, hand made solid sterling silver” Rope” fitment. Thank you very much for looking and your consideration of my work.