This is a Nagoya obi
with 'botan'(peony) 'Karakusa' (arabesque) and phoenix
in lattice pattern, which is woven.
Gold foil threads included in the pattern twinkle gently.
Textile is silk, and it has soft to the touch.
It has folding lines, and light frays on the foil parts on Kansai maki (rotate obi clockwise) side. (A)
Flaw (B) mentioned on the wrong side of Otaiko pattern is just a gloss of the textile.
It has some other flaws as shown on photos.
Please see photos for details.
Although it has some flaws as mentioned, it is still in wearable condition.