It seems the Older Olds Studio Trumpet is more sought after than the tri-metal Olds Special trumpet. The specs. and valves appear to be the same. They appear the same in every respect except that the Studio has a brass bell with 1/4 to 1/8 of it in nickel silver. The Olds Special has a nickel silver bell with 1/4 to 1/8 of it on older version a bronze bell and the newer tri-metal with a rose brass bell. May have been the same on both.Just a marketing word ploy. Does one play that superior to the other? Are they very differant in sound? Like the Studio very bright and the Special very dark. The tri- Special seems not to be as popular as its older version are even the ambassadors. It seems that the metal mix would have made it a very great sounding horn with a unique sound all its own instead of being the red headed step child of the Olds Family. All comments welcomed.