Vintage BARBARA SUE Cape Cardigan Sweater White Acrylic Knit Size M/L?

This pretty vintage BARBARA SUE cardigan cape sweater is in excellent pre-owned condition!   Size tag is missing therefor, please consider the following measurements before purchasing.  Thank you! Measurements (taken while laying flat): Chest (see pic) - 29"         Shoulder (see pic) - 18"   Length (top of shoulder to end of hem) - 28"