Description - This is the Lil Angel set by Barbizon in pastel "Petal" pink with polka dots. It's a  baby doll style pj set from 1964 that includes a sleeveless top and matching bloomers.  The top has a smocked ruffle around the neckline with embroidered pink polka dots and a bow. The bloomers have elastic in the waist and leg holes. They have a crotch gusset. 

The ads in the photos are all from 1964

Details

Brand - Barbizon

Content - Blendaire Batiste (a woven blend of Dacron polyester, nylon, and cotton)

Size - Medium

TOP:

Chest - 21" pit to pit measured flat but the fabric has a lot of fullness and spreads to 24"

Length - 25.5"

BLOOMERS:

Waist - 11.5" across, stretches to 17.5"

Hips - approx 22" across

Rise - approx 16" 

Outseam - 15"

Leg Opening - 7.5", stretches to 15"

Condition - I don't see any holes or stains and the elastic is still springy