Made by August Silk, this brand is known for high quality silk and silk blend garments from ready to wear to intimates!  Tagged a size small and semi sheer with adjustable straps.
 
100% Silk
Chest: 36 in.
Length: 24 in.
Model is 5'2 & typically a size 4/6
Disclaimer: Please keep in mind these pieces are vintage, if there are any flaws they will be noted and photographed