Cat. No. 98452-Charger-X
These chargers are made by an engineer, Wulf Koehler (Dr. Cam), who has worked with the Rolleiflex factory for 4 decades. He consulted with the factory on the Type D charger but ended up making his own. They are very similar to the D but have the improvement of a nicer fitting enclosure that is non-conductive resin made instead of aluminum.
Note: The photos show the charger with Euro style wall plugs but they will be supplied with US style plugs.