Oil Painting Set in Wooden Box, HOLBEIN

Purchased about 30 years ago and used for about one year in art class.
I am not knowledgeable about oil painting supplies, so there may be errors in size numbers, etc.
Please check the photos carefully before purchasing.

[Contents]
- Wooden storage box
→There are some areas with white paint on them, but no noticeable scratches or dents. The surface is slightly uneven where a name sticker was peeled off from the side.
- Wooden box size: 20×29×8 (cm)

- Wooden palette
→Overall clean, but there are signs of white paint being wiped off on a part of the back.

- Practice Oil Paint Set B911 Set A (12 colors)
→Since it was not used much, the contents are mostly remaining, but as it is old, the lids are stuck and cannot be opened. The contents are soft, so I think they can be used if you cut the tubes.

- Oil Brushes (Series KC Chelsea 6, 6, 10, 12)
→I am not familiar with paint brushes, but the handles of the brushes were marked 6 Series KC Chelsea.

- Brushes (No. 1, No. 2)
→The handles are marked 1 SQUIRREL and 2 SQUIRREL with a squirrel illustration.

- Painting Knife (NEW Chelsea No.3)

- Oil Cup (Chelsea)
→The inside is brownish, but it is unclear if it is rust or oil.

- Painting Oil Medium
→About two-thirds of the bottle remains.

- Odorless Mineral Spirits
→Less than half of the bottle remains.

- Brush Cleaner (NEO CLEANER No.1)
→About two-thirds of the container's height remains.

- Guide to Oil Painting