Info Eduard
Not sure if many are aware of these but these PDFs are published monthly and Eduard encourages downloading and sharing. Of course they deal with Eduard products but they also include history. This issue from October 2020 has an article called "Spitfrie Mk.I Evolution of the Camouflage and Markings", 12 pages long
The wife has an editor on her laptop and I just need to get around to doing it. I have an earlier edition that highlights differences of late model 109's that I want to save.