Vintage Alfred Dunner Knit Plaid Sweater with Brass Buttons, Size M

Vintage Alfred Dunner knit plaid sweater with brass buttons in great condition, size M. Not 100% sure of the material, but because of the hand wash/dry flat I’m thinking a wool blend. Features brass button closure, collar, shoulder pads, and elastic cuffs and waist. Minor wear and pilling overall. Please see all photos and DM with any questions. Ptp: 21” Waist: 17” unstretched Length: 24.5”