https://i.ibb.co/2K490hV/Help.jpgMost of it I tried to outline but I received this square and it has 7 more sets of what is displayed in the image. I believe it is an old key or recovery phrase but have no idea how to decrypt it. I think top to bottom may represent 0-9 but just wanted to know what others thought. Have you seen anyone store a key like this? Any idea why there would be three colors? maybe one color is numbers and one is letters? but then I don't know why there would be a third. It feels like a serious brain puzzle. Any help is appreciated. There are in total 350 squares if I add up all of them which seems too long. Most older key types I have seen are a maximum 256 I believe? Hoping someone who has been in this space longer than I can provide some insight. Thank you.
I tried to embed the image instead of link but had no luck.
Also, this is just an example of one of the squares I made up and not a 1:1 of one of the segments.
Really hoping someone can point me in the right direction.
Thanks!