Brookland style mufflers

[Chris KC]

That's interesting, must admit I'm still wondering how the domed ones were made! Though they do look nice.

p.s. did your DVD's arrive Bill?

I've always believed they first bent a full tube, laid it flat on the bench and sliced it lengthwise on both sides.
 Throw away the bottom half. 
 Repeat the process for another example.
 You now have 2 sections which when married to 2 pieces of flat plate, will provide the body of the muffler.
 At least that's how I would do it.  cheers  Russell

Sounds rather labour-intensive Russell. I'd have thought they'd have made a stamped/ pressed part and welded together but if so I don't know where the joins were.