An interesting filigree casket

An interesting filigree casket, on four ball feet, the cover secured by three clasps and inset in the centre with an oval plaque (behind glass) inscribed "Heather, from the Makers Grand-Daughter" the reverse of the plaque inscribed "Made by N.J. Alexander, 4 High St. Eton Windsor 1876", the front with a shield cartouche inscribed "Adele", c.1876, 9in (23cm) long, 18oz.