Vintage 1970s 1980s Blue Sweater with Shawl Type Collar

Rich royal blue pullover circa the 1980s or perhaps the late 1970s. Ribbed with 3/4 length raglan bishops-ey sleeves and a fun criss cross shawl type collar with button details. Label reads: none. Looks and feels like an acrylic or blend. Probably in the medium to large range but do see measurements below.
Excellent vintage condition. The only thing to note are some areas where the white threads of the seams show through, see photo for example.

Measurements when lying flat. Doubled at bust, and waist. This is a knit so there is some give.
Armpit to armpit across bust: 37" at rest up to about 56" stretched
Waist: 28" up to 45"
Shoulder to bottom hem: approx. 21"
Please note: These are vintage, preworn and/or preloved items. I do my best to list any issues, but signs of wear should be expected. Please feel free to contact me with any questions. I'm truly happy to help in any way possible and I'm always up for a chat. Any accessories shown, including crinolines, are for display only, not included unless otherwise stated