Rad! A perforated orb is studded with turquoise cabochons, like the head of a very chic mace. It looks a lot like earlier pomanders, popular in the Renaissance for holding medicinal perfumes and oils. In later centuries, vinaigrettes did a similar job - keeping malodorous air away from upper-class noses. By 1900, though, when this piece was made and patented (in Birmingham, as the hallmarks tell us), I don't know exactly what someone would have put inside. Patent medicine, maybe? In the 21st century, you can keep your emergency klonopin close at hand.
MATERIALS: 9k gold (marked), turquoise cabochons, new 14k gold chain
AGE: Birmingham assay marks for 1900
CONDITION: Very good - minor surface wear commensurate with age and use, stamped Reg[istere]d No 368291
SIZE: 1" length including the bale, 3/4" diameter, 18" chain