The fabric was made in Oshima using traditional dying techniques.
Every single line of fabric was painstakingly lined up correctly to ensure the pattern is perfect.

See here for more details on Oshima tsumugi kimonos:

And here:


Width: 131cm (51.5")
Length: 156cm (61")
Sleeves (top to bottom): 45cm (17.5")
Armpit to Armpit (back): 63cm (24.5")
Chest (along the back fold, except collar): 126cm (49.5")

Age:
1980s

Fabric Quality:
Silk, slippery feel, very shiny
B - Use staining on the collar, right chest, front of right sleeve, and lightly on the front (when worn). (Outside)
See photos for more details on the lining. Little staining on the lining.