ANNE KLEIN II vintage dark navy silk tank top, Size 6 (fits like 0)

Vintage 80s Anne Klein II silk tank. It is very dark navy (almost black) with a white spot pattern and small slits on the sides. Tag says size 6. Fits more like a 0. Slight darkening at underarms (see detail). Width across bust (pit to pit): 15 1/2 inches Length from top of the shoulder to the bottom hem: 20 1/2 inches