A Victorian folding fruit knife

A Victorian folding fruit knife, with mother of pearl sides, a George III mother of pearl mounted folding fruit knife and fork (which separate for use) an early 19th century sealing wax case with border engraving, unmarked c.1800 and a George IV folding fruit knife with chased shells up the sides, struck with an indistinct maker's mark and what looks like a Montrose town mark, 1820-1830. (4)