Vintage crocheted shawl

Ivory colored crocheted shawl. Don't know exact fiber content of yarn but my best guess is mohair and acrylic 🤷‍♀️. When I put it over my shoulders, it immediately felt warm.. that's why I thinking some kind of wool.... I hand washed in cold water and hung dry and it did fine. Errant threads here and there but since it's all over it leads me to believe that it's just the nature of the yarn. Approximate measurements are: neck to longest part in back 37" width 70"