Hi Paul,
I've got it in hand and I'm finding it really hard to tell if it is in the glass, or on it, but I'd say in it as there are traces of colour inside the stopper bottom bit.
The bottom of the trumpet is not metal, it is just ground glass, like you'd find on the end of a decanter stopper. That rises up into a hexagonal cut portion and then up to the diamond point top funnel bit, thingy.
It may well be pressed, I am so outside my comfort zone, but it is so sharp to the touch that I would say cut.
I will try and get some better photos in natural daylight tomorrow.
Think I should hold off on unpacking anymore boxes, I've managed to ID lots of things by myself today, but found these, 3 with the same function, but totally different, and some incredibly chunky textured tumblers
