From the looks of the brooch i dont think 1800s actually looks too far out. it does look victorian era in its style and the aging on the brooch and the pearls would suggest it is definitely an old piece this is the entire brooch https://i.postimg.cc/VSVMyT7F/20210313-212111.jpg hhttps://i.postimg.cc...
I have this brooch and cant i dentify the hallmarks, i believe it may be scandinavian due to the U3 mark but that is all i have to go on, any help would be great, thanks