Vintage 70s Cropped Button Front Plaid Vneck and similar items

Vintage 70s cropped plaid V-neck button front cardigan in dark blue, red, yellow, and green with solid, dark blue ribbed trim around the neck, placket and a 3 1/2 inch band at the waist. No tags anywhere. This is lightweight and I?m not sure the fabric but I?m confident the solid trim is polyester. It?s not a sweater but it does have some stretch. Measures 19 inches shoulder to hem and 17 inches armpit to armpit. It is featured on my size XS/S dress form for scale. There may be a couple of pinpoint size spots, but I am not sure they aren?t supposed to be there. See photos. They are in some of the red parts at the front, but they seem to match the dark blue edging that is not crisp lines so it may just be part of the print. It?s really not noticeable but worth mentioning