Gibson J-45 "The 59" Genuine Adjustable Saddle This is a genuine Gibson adjustable saddle that was originally installed on a J-45 "The 59" (see photo 7). I replaced it with a different saddle after purchasing the guitar, so this one has hardly been used. The material is likely TUSQ. Please take a close look at the images before considering a purchase. I will ship it as quickly as possible. Thank you very much.