Hi Emily thanks for your question. Interesting. Do you recognize the symbol depicted on the front? It looks like a commemorative badge or medal of some sort. I think it may be 10k gold plated over silver. This is called silver gilt or Vermeil. Examine it carefully with a jewelers loupe or magnifying glass and let me know if you can see any tell-tale signs of peeling or flaking or changes in color of the gold. I have a hunch who the maker is but need a bit more info first.
