
Yes. And a lovely and unusual thing too. I've seen paperweights with a similar internal structure, in pink, but a small and very thick bowl is not something I've seen from Mtarfa before.
The small, very thick bowls from Mdina are not overly common either, and the similarity of shape leads me to suspect it might be early Mtarfa - before they really diversified in their own designs. Early Mtarfa is fairly easy to mistake for early-ish Mdina. Mtarfa was not set up until 1981.