Harold's lace pattern pleated back pants

Heavy weight material (black or very dark blue) with white lace pattern overlay. No pockets. Back is slightly pleated for fit. Inner tag with style number is faded and unreadable. Dry clean only. Appears pants may have been altered. Approximate measurements: 15.25" waist flat lay 10.5" rise 26.5" inseam 10" leg opening, flat