Hans Hoyer 801 Full Double French Horn (Yellow Brass)

This is a Hans Hoyer 801 series yellow brass lacquer finish, a representative model of full double horns.
I purchased it new when I entered high school and used it with care until I graduated from music university. I am now selling it because I have fewer opportunities to play it and wish to pass it on to someone who will cherish it.
[Model Details]
Model Number: 801
Key: F/B♭
Finish: Yellow brass, lacquer
Bell: Detachable
[Product Condition]
Playability: Used as my main instrument until graduation from music university. It plays smoothly across all registers. The rotary valves and slides move smoothly.
Exterior: There are minor scratches, lacquer peeling, and small dents due to use, but no major damage that affects playability. (Please check the photos for details of any concerns.)
Maintenance: The instrument was regularly serviced. I have performed a basic cleaning and oiling before listing.
[Accessories]
Shiny case
[Shipping]
Will be shipped via Rakuraku Mercari Bin (Takkyubin).
As this is a valuable instrument, it will be carefully packed with the case wrapped securely in bubble wrap and then placed in a cardboard box.

[Part Replacement]
Please be aware of one point in advance.
The part that secures the bolt connecting the 4th lever and the rotary valve is missing. Currently, a donut-shaped part (washer-like part) is being used as a substitute to secure it.
I played and operated the instrument without any issues in this condition during my university studies, but it is not the genuine part. Please be sure to check the 10th photo for details and appearance. If you are concerned, we recommend replacing the part and adjusting it at a musical instrument shop for a few hundred to a thousand yen. The price has been set with this in consideration.