This is a vintage Maru obi
with kanoko dot 'tatewaku'(waving line) and flower eating bird pattern, which is woven. .
Textile is silk and jinken (rayon) blend and has crisp touch.
Pattern is placed upside down, which is suitable for Hikinuki knot style.
It has discoloration by ages overall.
It has some other flaws such as folding lines and tiny snags.
For the details, please refer to the photos and the sheet.
It seems to be not suitable to wear, because it doesn't have enough strength for wearing due to its old ages.
The wonderful textile could be useful for your handicraft or interior decor.