cover 1855 (7 Feb.) envelope to Gloucestershire bearing 1854 SC 16 1d., LA, a marginal example showing inscription, perforated 16 on three sides and unofficial 'sewing-machine' separation between stamp and margin, tied by fine "MANCHESTER" sideways duplex cancellation; some slight staining around the edges of the adhesive but still fine and most unusual. B.P.A. Certificate (1996). Photo