This is a vintage Barbizon slip chemise made of ivory taffeta material with lace trim. It is a size 14 and has a waist to hem measurement of 20 inches and a shoulder to hem measurement of 40 inches. The slip has a secretary/geek look and was made in the United States during the 1960s.

There's 2 tiny surface spots on the back next to each other.  I believe it will come out when laundered.  Please see the last photo for details