Vintage Carlyle Struven Chicago LS Button Front (please read)

This is a very neat top with one missing dark blue button on one of the sleeve ends. Won’t be too difficult to find a match as it’s solid dark blue in color . Also one minor fabric snag on the inside/ edge of collar. Please see all photos as this is otherwise in excellent condition. 18” P2P front front. 27” shoukder to hem and 21.5” from shoulder seem to hand opening.