Butterick 9550; ca. 1960; Floral appliqued (pattern included) flared skirt, long slim pants and loose slightly below waist overblouse with short unmounted sleeves and bateau neck. Coordinating fitted tuck-in blouse.
Links to reviews/blog posts
Pattern Junkie, "Unfortunate Fashion Friday: The Dark Side of Floral Appliqués"
Selvedgeshop Uncut Size 12