Not so sure that is a letter, possibly a mould mark. Could you take another shot of the base at a lower angle please trying to get the light reflecting to make the mark stand out more. In the first image I had thought the glass stopped halfway down but the new views show it goes to the bottom. The lip on the glass tells me it was made separately and not blown into the metal and I doubt the metal could have been brazed together with the glass in place, but it could have been soldered which would not require as much heat as brazing. It is possible that it is all a marriage, leaves bowl just being put together by the artisan. Africa/India, not necessarily either young or old, springs to mind. Or it could be an older production item with the cage made on a former matching the mould used for the bowl in which case Bohemian is possible.
If it is soldered the Africa/India option is likely. Not easy to tell from pictures. Solder is softer than brazing and you might be able to indent one of the joints (out of sight) with the flat of the point of a nail on the additional metal not the wire. If it makes a slight depression it is soldered, done carefully but with substantial pressure it should not damage the surface. Also check with a magnet if the wire is ferrous.
From the inside you might be able to tell if the leaves are attached to the glass and if the are perfectly in contact with the clear glass... do they wobble at all, even very slightly.
What is the size?