Vintage 1960s era midi/mini shift dress by Cay Artley. ILGWU Union made in USA. No size on tag, would likely fit a size Medium best. (Modeled on a 5'11" Medium/Large). Double breasted front buttoned panel. Wide collar. Above or at knee hem, depending on your height. Faux pockets with flaps. Great vintage condition! 
Measurements: 
Pit to pit: 19" 
Waist, right above top of pocket flaps: 17" 
Length, shoulder to hem: 37"

(2)