Size M to L Vintage 1970s Long Blue Cardigan

Vintage 1970s long cardigan sweater in a heavy blue knit fabric with a bit of stretch. Long sleeves, patch pockets, side slits, front buttons. ***Buttonholes have been done in white thread, buttons on sleeve cuffs are different than buttons on front, there is a faint mark on 1 sleeve (see last photo)*** No labels, should fit size medium to large. Measures 40" around bust, 40" around bottom, length is 27.5". Shown on a size small model with 34" bust. This is a pre-loved vintage second hand item.