This is a Nagoya obi
with 'shikishi' (square papers) on 'zigami'(paper cut of shape of fan or umbrella etc.) pattern, which is dyed.
Lots of gold color and foils are used for extra elegant look.
Textile is soft silk with gold threads included in fabric.
Discoloration and smudge are light and not disturbing.
Folding lines are not disturbing for wearing.
Please see photos for details.
There is a stain at about 6cm(2.34in) from Tare end, but it is light and may hide behind the bow. (sorry no photos)
If you do not mind the small flaws mentioned, it can continue to be worn.