External oil pump on a very early Moto Guzzi big twin engine
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
Gordon Kline of MG Cycle sent me these photos from the Moto Guzzi museum. Later, Marco Quartieri posted additional photos. Charlie Mullendore of Antietam Classic Cycle mentioned that it appears as if Moto Guzzi might have been experimenting with a dry sump design.