EDIT: Thanks to the lovely @chrisphin, this is now sorted!
Very long shot: I don’t suppose any of you lovely people 1) own a Mac clone, 2) have a photo of it handy (or would be willing to shoot one I can use in an article)?
(I’m hoping to use the subject for my back page in Stuff, but there’s no good art in Commons and press shots from that era are long gone. So I might have to abandon the idea, fun as though it was)