Hi folks here are some more pieces. Firstly the before shot of the other corner where the lid catch fits:
and after:
Next the bobbin winder. Here is the before:
I didn't completely dismantle this part but did remove some bits particularly the thread guides and the cam. All in serviceable order but dirty. Here is the after shot. Admittedly not a huge amount of difference!
That's all for now. Stitch