Two gold or hardstone micromosaic snuff boxes, early nineteenth century

the first, a two-coloured gold example, probably Hanau, circa 1815, rectangular, the lid set with a rectangular micromosaic plaque of 'Tawny', the Duke of Devonshire's spaniel, the gold ground on all sides chased and engraved with floral foliate borders, double crowned T mark in cartouche, in modern green leather case,

8.3cm; 3 1/4 in. wide;

the second, a dark grey marble snuff box with silver-gilt mounts, early nineteenth century, the lid later inset with a micromosaic plaque of a dog eagerly observing its future prey, in a silver-gilt frame, apparently unmarked apart from French boar's head control mark, 9.5 cm; 3 ¾ in. wide