On 2016-06-06 11:29 AM, Liam Proven wrote:
  I think IBM offloaded the keyboards line to Lexmark,
who offloaded it
 to Unicomp. So, yes, it's legit, you're right, not a clone. The one
 unit I have tried felt rough and poorly-built compared to the Real
 Thing, and it failed after a few months. I understand the owner got a
 warranty repair and that failed, but I think he has a working one now.
 As it happens I was chatting with his housemate today on Twitter and I
 think it's still working now. But then, he is on the list, so he could
 answer for himself if he liked. :-) For an expensive keyboard, it did
 feel cheap to me -- including, as you say, the captive cable. I would
 have liked to see proper onboard USB using a standard cable, perhaps
 with a 2nd port for a mouse 
What became Lexmark was originally the IBM typewriter
plant in Lexington
Ky., when the typewriter business was winding down they where given the
mission of producing keyboards among other things. Later it was severed
off from IBM and became Lexmark, much the same way as the IBM Toronto
plant became Celestica.  Unicomp came along still later and apparently
bought the keyboard designs from Lexmark, after Lexmark was no longer
interested in producing keyboards.
Paul.