Red Plaid Knit Skirt Set 70s Vintage St. Cloud Acrylic Knit Long Jacket Short Sk

Super cute & classy red plaid skirt set. Fitted blazer with short flirty A-line skirt. Very good condition, some light pilling - no stains or damage. Guessing it is acrylic, no content tag. Mysteriously the skirt tage says hand wash, jacket dry clean (could likely be carefully hand washed). Skirt waistband is split on one side, see the pic. Marked size 7, shown on a 6 dress form and a nice fit. Form is 35/26/36. Pit to pit on jacket 18", skirt waist 26", skirt length 18.75". Fabric has a little bit of natural stretch.