Almost certainly an issue Royal Navy submariner type sweater and NOT of wartime manufacture. However, it does look the part and certainly has age. Measures approximately 18.5" pit to pit (37") unstretched. Unlabelled but has the usual cotton reinforcement 'diamonds' at the shoulder/neck. A little soiled and does have some small holes and darned repairs. An ideal alternative to a wartime example (which never turn up) or the more modern submariner types often sold on well-known auction sites as 'original'. Stock code M21766.