RTW Charleston cardigan/sweater, size Medium, vintage, heavyweight, pockets

Awesome cardigan/sweCater by RTW Charleston. In like new condition. I believe this is a vintage piece. Has two pockets on front. Cute collar. Heavyweight knit pattern. Off white/very pale yellow in color. Ribbed knit pattern on bottom hem and sleeve ends. Fabric content: 100% cotton. Garment care: Dry clean or hand wash. I believe this is a women's size Medium; however, the size tag writing has worn off. Please see measurements below to ensure a good fit! Approximate measurements, laying flat: Length: 25 inches Bust: 20 inches Sleeve length: 21 inches