It looks like one of those old word-processor keyboards - I remember Amstrad making a few that looked almost like regular PCs, some with floppy drives next to the built-in screen, some in the base unit - horrible 3" 'quick disks' which were a no-man's land before long. I only saw those on some ancient Akai 612 sampler and the Sinclair Spectrum +3 (which was made by Amstrad anyway).
Anyway, I seem to recall some of the keyboard looking like that, with the multi-colour section at top.