edit: from the fcc id, it might be a keytronic?
http://geekhack.org/showthread.php?10597-Key-Tronic-boards/page3
Foam/Foil capacitive.
(Attachment) 33091[/ATTACH]
Elementary, My Dear Watson.
Mine looks much better (and is even older!):Show Image(http://deskthority.net/w/images/e/e6/Columbia_101.jpg)Show Image(http://deskthority.net/w/images/thumb/c/c8/Columbia_004.jpg/640px-Columbia_004.jpg)
This (http://www.ebay.co.uk/itm/Key-Tronic-IBM-XT-AT-Keyboard-/320802501381?pt=UK_Computing_ComputerComponents_KeyboardsMice&hash=item4ab151b305) one looks better but is most likely newer.