The 50th anniversary of 15mm figures and of Peter Laing figures is mentioned in November 2022 edition of The 15 Mill, an interesting eclectic and free online magazine (e-zine?) celebrating 15mm gaming run by Martin Goddard of Peter Pig 15mm Miniatures.
https://collectingpeterlaing15mmfigures.wordpress.com/2022/11/12/50th-anniversary-of-15mm-figures-and-peter-laing-mentioned-in-the-15-mill-online-magazine-november-2022/
Our “stop press” two and half page mention or article was put together as the November / Christmas edition was going to press from emails between Martin Goddard, Peter Laing collector Ian M.Dury and myself.
The November 1972 advert in Military Modelling that launched 15mm scale and Peter Laing figures.
All The 15 Mill back issues are freely available including no. 4 November 2019 featuring Peter Laing WW1 figures from the ABC Gamers blog.
After its recent Flames of War popularity, 15mm seems to be on a bit of a backfoot or backburner at the moment with the increasing dominance of 28mm as current standard alongside a quirky ‘free for all’ diversity of manufacturers’ scales from 2mm, 6mm, 12mm, 18mm, 30mm, 42mm and all stations in between (rarely an odd number like 15!) 
Ian Dury set up and hosts the MeWe Peter Laing Collectors Group https://mewe.com/join-front/peterlaingfigures
Over the last year I have been cataloguing and photographing my Laing figures on this informal blog https://collectingpeterlaing15mmfigures.wordpress.com
Blogposted / Crossposted by Mark Man Of TIN 13/14 November 2022
This link to the recent Country Life article by Charles Harris includes pictures of Wells’ grandsons as youngsters playing with his collection came from the BMSS website
Man of Tin blog 