Vintage Cardigan Wool Sweater, size M

Vintage Cardigan Sweater, size M ( please look at the measurements to better assess fit). 7 button closure. 100% wool. Measurements (approx.): Pit to pit: 21” Length: 25” Sleeve: 19” Very good preowned condition however, the color on the back of the sleeves are different (please look at the last photo). Offers welcome.