This is a vintage black satin Nagoya obi
with lovely butterfly pattern, which is finely embroidered.
The vivid pattern glows very well on the black satin background.
Textile is exquisite soft silk.
There is only one 'maegara' (front patterned part) which will be shown when you start wrapping the obi from your right tummy to right(Rotate obi counterclockwise).
Although there is no photo of it, there is slight discoloration throughout.
There is a stain on the 'taresaki'(end of wide part).
There are some patinas(A) on the embroidered areas.
For the details, please refer to the photos and figure.
Although it has some flaws due to its age, it is still very charming design which only vintage items have.