Vintage Americana open knit cardigan sweater

Vintage Americana brand open lace knit white cardigan. Tag reads “Knitting Mills of Miami, Inc.” Light wash wear. Missing one button. Overall in good vintage condition! Size tag says 40 - I’m not sure what that translates to in modern sizing, but it measures like an extra small. Please see measurements! Approximate measurements: Length: 22.5” Bust (when buttoned): 17” Sleeve length: 21” Material: 100% acrylic fiber Smoke-free, pet-friendly home.