Something inside the puffer bulb has broken, which is why it's hanging down and looking odd. It does look more suitable if held up in the position where it was intended to be.
I have looked through GTS, trying to find the pattern, but had no luck in either Mysteries or Known patterns.
I don't know if it's at all significant but the only similar arrangement of the puffer bulb with short metal tube and "pill-box" nozzle that I came across was in the Ernst Buder "Atomisers 590 - 593". Although as they are drawings, perhaps they are truncated to save on space? All the Buder Known patterns have, what to me is the "usual" longer metal nozzle with the tube to the bulb pushed on the other end.
Mystery number 112 has a similar arrangement but is so different in every other way, I can't see that they are related.