Vintage 70's Halter Disco Dress Electric Blue XXS Satin Banded Ribbed Waist

Saturday Night Fever, retro, Studio 54, surplice neckline, full skirt, dancing, party, night out, sexy, clubbing, date night, open back, zips in back, brand is Funky. This was my mother's dress in the 70's. a couple of runs in the back near hemline (see photos) no size tag, measurements in photos offers welcome