Hi, I bought an old monitor in local auction and I cant find much of info about it.

I think the model is "PCvision"(label in bad shape) and manufacuter is british Compuser ltd. I googled around and only found one reference in some old amstrad magazine.

So, I'm just wondering if this is really rare piece of computer history and while not all rare items are valuable, I have difficulties to think how much to ask for it if I sell it. But mainly it is interesting that there isn't much of an info to find