A very good 12 bore single percussion gun by Samuel and Charles Smith

A very good 12 bore single percussion gun by Samuel and Charles Smith, two-stage damascus barrel 32 in., multi-faceted breech developing chamfered edged toward a turned band before progressing to a round profile, top flat marked 'SAML. & C. SMITH, PRINCES STREET LEICESTER SQUARE. LONDON', breech plug with fine acnthus engraving and 'SMITH'S PATENT' within a panel, London Company proof marks, break off breech, the tang with scalloped leading edge and fine engraving involving a pheasant; engraved lock signed 'SAML & C. SMITH PRINCES ST LONDON' and with a vignette of a pheasant; figured stock with steel furniture and white metal fore end cap, chequered wrist, wooden ram rod with concealed worm.