Vintage Jonathan Martin pleated front geometric retro blouse with shoulder pads

Super cool Vintage 1970s blouse from Jonathan Martin Long sleeve Button down Unlined Geometric mixed pattern in fuchsia, green, purple and black Pleated detail down front, shoulder pads, buttons behind neck with keyhole opening, double buttons at cuffs I cannot read size or make label It has a silky, satin sheen feel Please see measurements for size Laid flat Pit to pit 20.5” Shoulder to bottom hem 24”