Yamaha YSL-8420G Tenor Bass Trombone

This is a YAMAHA Tenor Bass Trombone YSL-8420G. It is a large bore model with a gold brass bell. This model was manufactured from around the 1980s to the 1990s and was called a custom model, which was a high-end model.

The lacquer is noticeably peeling overall, but the slide is completely smooth with no catching, and the rotary valve operates without any issues. This is a very resonant instrument with a large capacity, making it less likely to crack even when played loudly, and I believe it is suitable for orchestral and band ensembles. As it is made of gold brass, it features a warm and soft tone.

Photo 1: Shown in its original case.
Photo 2: There are two rust spots on the main tuning slide above the rotary valve.
Photo 3: The plating on the tuning slide is significantly peeled off and is almost unlacquered. It's possible the plating was intentionally removed to improve resonance.
Photos 6, 11, 12: The hand grips show considerable plating loss.
Photo 7: There is one rust spot on the slide stocking. However, this does not affect the slide's movement.
Photo 8: There is a scratch on the bell.
Photo 9: The inside of the bell is clean.
Photo 10: There is rust on the rotary valve caps.
Photos 13, 14, 15: The end of the slide also has plating loss, but there are no dents.

Thank you.