VTG 70s 80s lightweight plaid blouse w/ 1/2 sleeves & mandarin collar sz XL (?)

Vintage 1970-80s lightweight plaid blouse with 1/2 sleeves (rolled) and mandarin collar with 3 buttons. Nice subtle burgundy, deep forest green and burnt orange make this top perfect for fall! In great vintage condition! Size/brand tag is missing. Woman’s sz XL (based on measurements) Chest: 25” across Length: 10” - 20” armpit to hem (high side slits)