Devernois Paris Vintage 1970s Forest Green Preppy Cardigan Sweater Blazer 18?

Devernois Paris Vintage, 1970s or maybe early 1980s Forest green preppy cardigan sweater that is cut like a blazer Two large pockets above the hem 3 large goldtone buttons Unlined Ribbon trim on the collar and top of pockets No US size on tag Marked French 50, Italian 52, German 48, UK 22, appears to be approximately a US 18 Gently used condition Could easily be a unisex piece Please read measurements carefully to ensure best fit. Measurements (flat lay and approximate) Shoulder: 18 inches Arm: 24.5 inches Bust: 23 inches Waist: 23 inches Length: 29 inches