no, it's probably not 'usual' - the basic design shape goes back a very long way, though it's possible the pattern has been viewed for some time as 'old fashioned' - now, people would probably buy either a straightforward bowl or a flatish shaped cake stand. IMHO this has nothing to do with the C19 or Bohemia (famous last words), and is more likely to be from the middle third of the C20.
The design seems to fall between two stools, and ends up being more decorative than practical - it doesn't quite make it to qualify as a traditional tazza, and fails in capacity to be a decent usable bowl on stem.
In the second half of the C19, Sowerby were keen on this outline shape and made many designs - though in pressed glass only - some with detachable stems/plinths, thus making the item versatile, though as we've said, traditionally the foot would have been round.
That's not to say this one is unusable - would make an attractive centre piece for the dining table if loaded with grapes or glace fruits.
cue for song ................ altogether now "Whispers in the morning of lovers sleeping tight ...............
