This is a vintage Maru obi
with a pattern such as boat and phoenix
on wave, which is woven.
The chic hue is so stylish.
Textile is silk is jinken (rayon) blend and has soft touch.
It has frays on the tare end and throughout the edges.
It seems like the original owner of this obi enjoyed many fancy bow.
So that there are folding lines and wrinkles through out.
For the details, please refer to the photos and the sheet.
It may not have enough strength to be worn.
The wonderful textile could be useful for your handicraft.