While I don't know much about saxophone values [being a trumpet-cornet player], I do know enough about Holton to know that they imported Yamaha instruments starting in the early 1970s, continuing until the early 1990s. Holton sometimes imported near-complete instruments [these tend to have "Japan" stamped on them] and sometimes parts [specifically cornets-trumpets with Yamaha-like features but no mention of Japan]. As for value, it might be comparable to a student Yamaha tenor of the era [my best guess]...:scratch: