The fabric was made in Oshima using traditional dying techniques. The dark fabric is typically colored by dying it in mud.
Every single thread of fabric was painstakingly lined up correctly to ensure the pattern is perfect.

See here for more details on Oshima kimonos:

And here:


Width: 132cm (52")
Length: 162cm (63.5")
Sleeves (top to bottom): 53cm (20.5")
Armpit to Armpit (back): 61cm (24")
Chest (along the back fold, except collar): 115cm (45")

Age:
1990s

Fabric Quality:
Silk
B - Light age staining on the lower back and likely a few other spots (though these are hard to find).

Cleaning:
Dry Clean Only!