Antique authentic Handwoven Indigo Blue/Grey Sash Dragonflys

Superb handwoven indigo/grey sash measures 3 yards 11 inches in length and 6 inches in width.
I believe authentic this is a sash or obi.
Lovely motifs of dragonflies and other motifs as shown.
Heavy weight cotton.
Unfinished ends, never used.
Scant patina at one end.