Leica Elmar-M 50mm f/2.8 Lens - 11823 Silver Chrome - M-Mount + Hood - V2 ~1995

This particular one dates from around 1995 based on the serial number, so it's one of the earlier examples. I feel like you don't see as many of the silver ones. This is the later version of the lens, which was produced from ~1994-2007.