These are three Bebe under Dresses meant to be worn with a jacket. They featured a built in chemise with a drop waist pleated skirt. The one to the far left in the photos with the taupe colored pleated skirt is actually an antique one while the other two are newly made of very fine fabrics.
The only condition issue to note is the tear on the chemisette of the smaller underdresses which of course will remain concealed beneath a jacket.
Measurements from left to right:
Taupe one (needs hemming): 8 inches long
Gold Silk Satin One: 9.25 inches long
Pink One: 8.5" long