Four pairs of gem-set cufflinks, by Trianon

Four pairs of gem-set cufflinks, by Trianon
One pair set with shell, mitra pellisserpentis, terminals with cabochon citrine accents; one pair with cowrie shell, cypraea tigris linnaeus, plaque terminals; one pair with cushion-shaped sandalwood santalum album terminals inset with cabochon sapphire collets; and one pair with a flattened nephrite bead inset with a lapis lazuli collet, to a lapis lazuli baton terminal
Each signed Trianon, numbered (8)