This is a 'somewake'(dyed with separate design) Houmongi
with bold Tsujigahana
style pattern, which is dyed.
Textile is silk, and it has soft touch.
Detailed bumpy pattern is woven on fabric.
Collar is hiro-eri (unfolded).
There is a rather noticeable stain on front of left sleeve. (C)
It is also discolored as shown on photos.
Its lining is slightly discolored due to the age. (sorry no photos)
It has some other flaws as shown on photos.
Please see photos for details.
If you do not mind the small flaws mentioned, it can continue to be worn.