Cheery yellow floral vintage 1960s cotton shift dress

Vintage St Michael 60s house dress with ruffled collar. Measurement across bust, pit to pit is 20 inches. Lightweight soft cotton with retro floral pattern. Hem is hand basted. Dress is fully lined, but lining is not hemmed, just a raw hem, looks as though shortened with pinking sheers. There is some age related wear on back seam. See photos . Really cute, in good vintage condition!