Vintage 1970s butterfly shirt dress size XL

Vintage 1970s shirt dress. Semi-sheer material. Button down neck line. Boxy construction. Bat wing type sleeves/ no underarm seem. Removable belt that you can use as a waist belt or bow tie at neck. Brand- CB IV, CB 4 Black/pink/blue. Leaves/floral with butterflies. No tag other than brand tag. Modern size according to measurements. Laying flat: Length- 34in Chest- 31in