Now I'm back at my workstation with images of the plans I was kindly given permission to photograph by Tyne and Wear Museums and Archives. If you're visiting yourself and would like to make similar copies of any of the archive materials I've utilised, for your own personal use, there's some info for you here.
The First Class interior design was undertaken by Harold A. Peto and these plans showcase his work. A comparison can be made with Mauretania's sister ship the Luisitania where James Millar undertook the interior design of an equally shaped room. Millar chose to leave his interior open whereas Peto enclosed his with booths and partitions.
To the right I've overlaid the Smoking Room plan with a yard grid. With this plan, the Swan Hunters images and other archive materials I've now got enough to build the model with a high degree of visual accuracy.
Below is the result in an elevation rendering of the port side alcoves, it highlights the symmetry in Peto's interior design.