This is a Fukuro obi
with 'kikko ' (tortoise shell), 'shippou-tsunagi'(jointed four circles) and checkered patterns, which are woven on the gradational background.
Its gorgeous, yet sophisticated design with alluring gold foil threads is suitable to tie at formal occasions.
Textile is light silk.
There is not folding lines and it seems to be untied one.
It has slight discoloration on both edges of wrong side overall.
Also, stains can be seen on the blank part.
Please check detail photos.
However, it still can be tied!
This gorgeous piece will brighten up you on the scene for sure!