Apparently a pattern/brush no one who has it wants to share. I've also sought this out on other wargame design forums without success. I can offer you a scan of this which I purchased back in the 1970s for the same purpose, albeit for use on that ancient material called "paper".
Link to 10 MB 600 dip TIF scan here:
https://drive.google.com/open?id=1cm...s2si7WhJ2qgUWL
Although I'd prefer a clean digitally created version, I've managed to manipulate this to meet my needs. Good luck.
I don't know I use photo-real textures, and texture graphic, as well as a hand-drawn one I did for my hand-drawn maps (yes, I cheat and use repeating images and other graphics tricks with my hand-drawn maps) depending on my needs. The first one I use for continent or world maps, maps too big to show individual trees (the bump into implies trees, to me). The second is ground weeds that in limited areas make for realistic forest terrain. The third one is my hand-drawn repeating forest texture, and a sample in how I use it.
GP
Gamer Printshop Publishing, Starfinder RPG modules and supplements, Map Products, Map Symbol Sets and Map Making Tutorial Guide
DrivethruRPG store
Artstation Gallery - Maps and 3D illustrations
Hi Foaly, Can you explain what your numeric pattern is and how you created it as it certainly seems to have captured the essence of the original texture very well.
Simple graphic designer stuff
You have to convert raster (here, the scan/the image) to vector.
The technique is explained there : https://www.stickermule.com/fr/blog/...be-illustrator
There are other ways than Illustrator to do it.
If you have other retro materials like Nicholas Bell's paper scan, it would my pleasure to transform it into proper numeric pattern
John Cooper has this kind of terrain type for download on his website.
http://www.jrcooper.com/gaming.htm#terrain_tiles