Walter Lawson transformed the horn world in the mid 1970's when he started making parts for Conn and Holton horns to make them really sing. This is one of the last leadpipes he made - it's bent for a Conn 8D and is in fabulous condition. The discoloration on it is only due to some browning of the lacquer when it was removed from the horn. Made of Lacquered Nickel with an American taper.