This is an Oleg Cassini suit jacket in a women's size 8.
It is black with a single-button closure, padded shoulders, and long sleeves.
This jacket measures approximately 27" from the back of the neck to the bottom hem, 16" from shoulder to shoulder 19" from underarm to underarm, and 22.5" from the top of the shoulder to the cuff when laid flat. It was made in Columbia from an 80/20 wool/polyester blend and 100% acetate lining.
It is in good pre-owned condition with some wear.