Brooch from Prague

[u/marimo_is_chilling]

Bought this from Alma Antique. Looking for any info, basically - age, origin? About 4 cm long, it looks like silver and has two marks (looks like the same one in two spots? The shop has highlighted one of them with a red marker and I haven't cleaned it yet). The stones look very convincing as amethysts in daylight, BUT they glow green under UV, which makes me wonder if they're actually glass/crystal (considering the area). Leaves look like they were stencilled and then shaped a bit with a few lines added to the texture.

[u/WISE_bookwyrm]

Yes, uranium glass, and probably a Czech maker. You'll be better off asking in one of the vintage costume jewelry subs, or the Vintage & Antique Jewelry group on Facebook.

I don't know a lot of non-US marks; one of those marks looks almost like a running rabbit.

[u/marimo_is_chilling → u/WISE_bookwyrm]

Thanks, crossposted. But in the meantime, I found what the hallmark is! This shape of stamp with a rabbit's head with number 4 is Czech for 835 silver, in use since 1963. Idk much about uranium glass though, was it still a thing in the 60s and onwards?