Releasing from my collection. This is a "corp" near-period 7C mouthpiece. It's said to be from the 1980s to the early 1990s. There is overall clouding. Also, there is a slight distortion at the shank end. This is a used item, and the above information is based on my subjective assessment, so there may be oversights. Please understand this and consider purchasing with no claims and no returns.