This is a tasteful Nagoya obi
with grove scenery design, which is dyed with 'sumie' (ink brush painting)-like technique.
Textile is exquisite silk with woven stripe pattern and has soft touch.
It might be for mourning.
Stains can be hidden when tied, and smudges and discoloration are slight.
There are slight patinas on the maegara(front patterned part).
However, when you start wrapping the obi from your right tummy to left(Rotate obi counterclockwise), they will be hidden.
There are other flaws so please check detail photos.
If these flaws do not bother you, it could be still worn.