Champagne neo edwardian dress

Aa very unsual piece. typical 1970's neo-edwardian cut but in a heavy sateen fabric. Catches the light from every direction. Pictured buttoned and unbuttoned. Super stretchy waistband as measured.
MEASUREMENTS TAKEN LAYING FLAT
BUST: 20"
WAIST: 15" unstretched 22" stretched
HIP: FREE SIZE
Modelled by Grace who typically wears size 14