A LADY'S SILVER CASE/AIDE MEMOIRE

A LADY'S SILVER CASE/AIDE MEMOIRE, maker's mark D. Bros., Birmingham 1919, of plain rounded oblong form with all over engine turning, enclosing a roundel engraved with initials "YM", hinged and opening to reveal a polished calf interior with ivory leaf, on chain with finger ring 4" x 3"