Very sweet little nightgown from the 1970s.  Soft blue green color in a very lightweight polyester cotton blend.  Semi sheer. Has white piping and the prettiest embroidered daisies at the left shoulder.  Seems to be new old stock, no condition issues at all!  
Marked size medium.  Model wears size small top and medium bottom and is 5'11". For best fit, please compare the measurements below to your own, or to the size chart of a brand that fits you well. 

Bust: 42"
Waist: 48"
Hips: 50"

Shoulder to hem: 37.5"

Across shoulders: 14"