Vintage 70s 80s Sears Evening Formal Dress Black Stunning Gorgeous Jewel Accents S/M.  See size measurements listed in details.    I would consider this petite if you want floor length ( I am 5 foot one inch and it is floor length on me with 2 inch heels).  Could easily be worn tea length by someone taller.   No size tag in dress.  I would consider this a small to medium ( chest measurement is 34 inches when measured  but I am 37 inches chest and it stretched to fit me fine due to the blouson sheer overlay material at the top and made of a stretchy double knit polyester type fabric).  Excellent condition.   Beautiful rhinestone jewel accents at shoulders and waist, waist has tie belt feature intertwined with the waist broach.  Elegance from the 1970s to 1980s era in amazing perfect condition.