sony bke-2011 keyboard
The Sony BKE-2011 Editing Keyboard is the keyboard used on the Sony BVE-2000 linear edit system, and possibly others. While it does employ Topre switches, it is likely that the keyboard itself is not assembled by Topre.
The Sony BKE-2011 is unusual in that it uses a conductive rubber contact mechanism instead of the standard Topre capacitive switch.
See also: Topre Switch