My 5" is in the same colourway as your big one there.
I did wonder if it was the same size as my little one - there was something about the thinness and delicacy of the construction.
I honesly don't know how they managed to fit beautiful big bubbles into glass as thin as this, and bend it into shape, and then fix and polish the the pontil scar out.
And it's survived, damage free (so far, says she, ensuring she's in contact with wood while typing.
It never ceases to amaze me.
How they succeeded with your little bowl is another mystery - all that serioulsy complicated stuff on such a small scale is much harder to achieve than on bigger bits.
Technically, it's under 4 inches tall. Is it a miniature?