Both of those keyboards are just some IBM rubber domes, although the top one has had some accolades on here as being 'not that bad'. Personally, I hate it and quickly replaced all 8 of ours with Ms. But I still have them.
I have quite a few of the bottom one as well, mainly in black. They were used a lot on the 'Netvista' series of IBM computers that were used on a lot of hotel property management systems (where I got them when these systems were upgraded or taken out of service).
Have you guys even seen a Model A?
Is that still a rubber dome? It does look a bit like the top one, but the keycaps look smoother.