An exquisite French silver gilt and glass 'Opera' liquor flask, 19th century, bigorne punch, maker's mark for Em with dog to cartouche, a clear glass flask finely etched with neoclassical floral and ribbon motifs, swag, guilloche and husk designs to the engine turned screw on dome cap, collar and detachable cup to the base, with the original glass stopper, hallmarked, length 15.5 cm