Enamel and silver victorian brooch

I bought this beautiful silver and enamel victorian brooch a while ago in a junk shop. Its a bit of a weird construction: its fixed on some copper plaquette and it has a c-claps. I think it dates around 1910-1920. The enamel is not in perfect shape as you can see. I still have to find a jeweler who can fix this and the enamel egg pendant I posted a while ago. Anyway, I hope you like it!