Oshima Tsumugi? Chic bag for kimono, Japanese clothing

Is this Oshima Tsumugi? A chic bag for kimono and Japanese attire.

I don't know much about kimonos, so please correct me if I'm wrong.

It's old.
There are some stains on the inside.
I think there's also a smell.

Measurements (approximate):
Width: 25cm
Height: 12cm (14cm including the clasp)

I have various Japanese attire items.
If you're looking for something, please comment.
I'll look for it from my Japanese attire storage!

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↑Clicking these will make it easier to purchase multiple items together.

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Color: Gold系 (Gold-toned)
Condition: Stains, tears, and odor present.

Color: Black系 (Black-toned)
Condition: Stains, tears, and odor present.