Very attractive item and good detective work on its attribution.
That excess glass at the top is what we call "press up." It results when glass is forced upwards by the plunger and pushes the mould ring upwards a bit. It's hard to gather and drop just the perfect amount, especially for a small item like toothpick or s/p shaker. Incidentally, when similar excess glass is found along the vertical mould joint marks, we call that "press out" (I've heard collectors call this "fins" in England). Press out happens when mould joints get a bit loose over time and use.
I suspect this item was intended to be "pressed to shape" during production and sent right to the lehr, not to be fire polished. To do so, you'd need to snap it up, and the subsequent warming-in at a glory hole would likely melt over pattern detail and/or burn out some color. The excess glass is best removed in cold metal operations by an abrasive belt or cone. At the time an item like this was being made, press out and press up didn't not seem to be a concern, as I've seen many pieces with one or both!