The clear glass was cut into sections and the first roundel was leaded up....
...and tried for size. It fitted perfectly first time.
Tallow was rubbed over the joint. This smells a bit nasty (think mutton fat) when hot solder is applied.
Then a 3-handed job, to hold it tightly closed and solder the lead joint. We only feel about 35, we say, but our hands look ancient. When did we get gnarly old-lady hands?
The first curve was cut so that the roundel could be fitted into the clear glass.
Another efficient and effective tool, but if you find yourself using it too often, you have to think carefully about improving your standard of cutting! Not a problem today though.
And by the end of the day, this is where she got to. A streaky green number 9 in embryo.