Retro polka dot sheath dress

Retro polka dot sheath dress in peach and white. Purchased at boutique in Bangkok. Never worn. Material not listed but feels and looks like linen with a rayon lining. Side zip, v back and side pockets. Measurements Bust (pit to pit) - 17” Waist - 28” Length (shoulder to hem) - 34.5” Please see last picture for minor natural imperfection of fabric.