Rare 1970s London Mob barkcloth voluminous sleeve full length maxi dress, s-m

Most beautiful goth bohemian style full length maxi dress l, fitted around the waist with voluminous balloon bishop sleeve. Painted white floral pattern throughout. Deep v neckline.  materials: cotton; black thick canvas like barkcloth fabric size: see measurements closures: zipper down the back  designer: London mob carnaby street  condition: excellent measurements Bust free  26" waist (27 tight , 28 MAX) 38" hips 12" shoulders (seams on bodice) 27" sleeve length 57.5" length  material stretches very little