Looks like a compact terminal tenkeyless board + the tenkey part. I'd want to think rubber dome, but I'll not presume it.
As for ICL's machines, I can't say other than that some of them were PC-like (such as a UNIX server built around a 486) but may/may not have been actual PC's.
My disappointment is the lack of international shipping. I can get all the junk from China in 2 weeks time, but going between Western countries for things seems to be like pulling wisdom teeth.
