The Stokes Gun and Shell And Their Development, Sir Wilfred Stokes, Engineering, June 18, 1918.
Keep in mind this was a presentation for engineers and not a suspense novel!
High resolution scans in 3 PDFs (due to the 7MB upload limit for uploading files to the Forum)
Stokes Mortar, Part 1a.pdf (5.4 MB)
Stokes Mortar, Part 2a.pdf (4.4 MB)
Stokes Mortar, Part 3a.pdf (5.2 MB)