In the catalog the printer of P#97Аa.1 is listed as Hôtel des Monnaies, Kinshasa.
But here is my note, KE prefix and 2013-06-30:
On the back, the printer is G&D:
I don't know if Hôtel des Monnaies, Kinshasa printed any KE prefixes because I don't have any more 2013 notes. But it seems we at least need a new line for G&D
My 2020-06-30 note has the same G&D mark on the back:


