This is a fabulous Fukuro obi
with exotic 'Sarasa'(chintz) pattern, which is woven.
It is made by Watabun, one of the most famous obi weavers in Kyoto Nishijin.
Gold and silver threads woven in the background and the pattern are elegantly shining.
Textiles is exquisite Tsumugi
silk and has light and nubby touch.
There is a stamp of the weaver's signature on the tare part.
The discoloration is slight and will be hidden when tied.(refer to the 1st flaws photo)
It has some other flaws such as relatively prominent folding lines.
For the details, please refer to the photos and the sheet.
It's still wearable enough in very good condition.
Please enjoy its refined piece elegantly.