This is a 'zentsu'(fully patterned) Tsumugi Fukuro obi
with 'karabana'(imaginary flower in China) arabesque and 'housouge'(large karabana flower) pattern, which is embroidered and dyed with gold glazing.
Drawn work (one of the techniques of removing thread partly to make a ground textile seen through) is added to the pattern.
Textile is Tsumugi
silk and has soft but nubby touch.
It has a folding line, but there is no other flaw.
Please check photos for details.
It's still wearable enough with very good condition.
Please enjoy its gorgeous fashion!