A scarce chimney, very wide flanged fitter, to fit a Shaffer Perfection three cone burner.

Here's foreign chimney, with a wire mesh "jacket" - to generate more heat?

Here's a Brown's Patent metal top chimney.

Another metal topped variant.

A very bulbous lip chimney with a constricted neck.

A slip chimney with a molded-in lens.

The X-RAY chimney by Dithridge, pie-crust top.

Waffle design variant, straight top.