Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
Thanks to Frank Granli who sent this information to me in a private communication. In Frank's own words:
I also have installed a police fairing, leg shields and a Joe Jump steering damper and all of this goes together well. You will see from the pictures that only a single nut on each bolt was necessary to give room for the Joe Jump crash bar clamp.