Hi, MostlyHarmless,
Which type of gas burner do you have? The older Optimus one or the newer Primus made one? Got any pics?
I haven't the burner at hand right now, but I believ it simply says "trangia". It is a few years old, I'll check out what it says and possibly post some pics if that can aid in identification.
I'd like to get a gas or multifuel version. The only problem is that both of my Trangia sets are older than 1988 when the added openings for the fuel hose and control knob. Maybe some day.

Now THAT is an easy fix: Aluminium is easy to work with...

But I guess that you don't want to use dremel on your family heirloom...