Vintage 1960s Teal Traina Black Midi Dress Womens Size Small (no size tag, please see measurements).  No content tag but most likely a wool blend with a silk lining; knee length; back zip closure.  

Good condition with flaws: 
the hem of one sleeve has loose stitching;
loose stitches at the side of neckline
small hole at the hem of one sleeve
loose stitches along side of bodice
missing belt

Measured in inches:

Length: 38

Bust: 30

Waist: 25

Skirt: 21