A Faberge jewelled bowenite box

A Fabergé jewelled hardstone box, circa 1900 of stepped bombé rectangular form, carved of bowenite, the lid with cabochon ruby and rose-cut diamond-set silver-gilt hinges and clasp, unmarked apart from scratched inventory number 49628
width 6.3cm, 2 1/2 inches, gross weight 72.5 grams.