Hi Matthew - welcome to the forums.
Well, this turned out to be an interesting little item...
Believe this piece, decorated with an Egyptian scarab (khopruru/dung beetle), was some type of scent pendant, intended to hold a paper disc impregnated with 'Dongor Antiseptic Perfume' (would think intended to be carried with one, but find no mention of this specific item). It was a substance invented by Maud (Maude) Dickinson of Brighton, England in 1911 (the made-up name an anagram of her late husband's middle name 'Gordon'), mixed up from "rare Oriental Organic oils", and partially influenced by "ancient Egyptian writings". She formed the Dongor Hygienic Co., and around 1913, in formulating her Dongor soap, apparently discovered some sort of 'organic Radium', and went on to produce various 'radio-active' medicinal and cleaning items, including ointments, water and air fresheners. This information was published in a rather lengthy 1920 treatice on Mrs. Dickinson's organic Radium called "A New Activity?" by Frank A. Hotblack; a few other tiny bits of information can be pulled up online, and U.K. sources might turn up more.
The 'DORGON' name was trademarked in the U.S. in 1913 (note the 'Paper Disks' mentioned in the first image):