Rockabilly Vintage Repro Black Net Taffeta Slip S

Can't decide whether this classic rockabilly net & taffeta slip is reproduction or genuine vintage. It has a close-fitting taffeta upper from elastic waist to hip, then has 2 gathered layers of nylon netting that's trimmed with black lace at the hem. No label attached. Pre-owned, used; in good condition with no noted flaws. I'm calling it a S/M- elastic waist measures 24" un-stretched and up to 32" when gently stretched.