This is a modified CONN 88H from the 1990s. The F-attachment has been modified by a professional repairman to either an As-attachment or a G-attachment. There are no problems with the slide, etc., and it can be played normally, but as it is a modified item, it will be treated as junk. It will be shipped in an old custom case and packed in a 180-size cardboard box. Please confirm the following points: - The rotary action becomes sluggish if the valve cap is tightened too much. - The mouthpiece shank is a standard large shank, not a Remington shank. - The case is quite worn and damaged.