A twisted Chimney Pot in Taunton

Having to kill several hours in Taunton during October I did a circuit around the town centre. As my eyes lifted up unto the rooftops, as they do, I noticed this beauty. A twisted exterior, appearing to be vents in themselves with a Leeds 3 Bowl on top. From what I've seen online, they're usually an insert on the top, but this appears to be a put-on. Keeping it compay is I think a beaded roll-top pot. If you know the proper names of these pots, do comment!

The Chimney Pot Blog - Potty about Chimney Pots