N.F. Ramsay & Brother parted company on the 31st of December 1906 (Two years after these floor springs were put in the ground) but continued on as N.F. Ramsay & Co Ltd thereafter.
https://www.thegazette.co.uk/London/issue/28001/page/1608/data.pdf
The 'Invincibles' were in need of some major work, 4 were so badly seized the mechanism that aligns the doors, set in the shoes had bent, fortunately however not beyond repair.
Please feel free to leave any comments readers, they are much appreciated.