A Russian silver egg casket 19th century, the egg shaped casket…

A Russian silver egg casket 19th century, the egg shaped casket halves to reveal a second egg casket converting into a pair of egg cups, stamped to base, 110grs total weight of silver. Illustrated in Cummins, Dr G., antique boxes: inside and out, antique collector's club, Suffolk, colour plate 173, p. 107