Yesterday and today were spent constructing a fifth window frame. It is just about complete, it just needs the top horizontal welding on and the sides fettling where they have been welded.
I completed the fourth window frame yesterday and checked the three latest ones for weld and surface quality, then sprayed them with etch primer today.
Progress has been slow recently due to having a steroid injection in my right hand which has made it difficult to work. However today I almost finished the metalwork for a third window frame and should be able to start on the fourth one tomorrow.