A collection of enamel objects

comprising: a silver-gilt snuff box, S&F, Paris, circa 1900, the lid enamelled in blue over an engraved view of a courting couple, engraved signature H.W., the sides and base with pellet-struck engine-turning, diameter 7.5cm, 2 7/8 in; a pair of enamelled gilt-metal and mother of pearl opera glasses, LeMaire, Paris, early 20th century; an enamelled silver belt buckle, German, circa 1900, struck: 935, the face finely painted with gentians on a green ground with paillon sprays, width 7.5cm, 2 7/8 in; a silver cigarette case, maker's mark JFS, Italian, late 20th century, the surface engraved with foliate scrolls, the lid and ends green-enamelled, width 9cm, 3 1/2 in; and a silver-gilt compact, American, early 20th century