Here is a BB-1 Proto Plumbers Long Neck that weighs in at 364g and has no sight aid. It has the micro honeycomb face milling that make is look like a piece of jewelry. Triple black finish on soft carbon steel with a Jumbo Hex B on the sole and is one of 10 of this style that was made, I think they all had different features l like material, weight, sight aids, engravings, etc.