Can an aerodrome be controlled, even if the only associated airspace is classified G?
E.g. can such an aerodrome have a control tower with the authority to give takeoff and landing clearances and taxi instructions?
I know the opposite is possible (uncontrolled aerodromes in class D airspace for example).
I am not asking about AFIS aerodromes, since AFIS is not an air traffic control service.
Please provide examples and/or references to ICAO SARPs or national regulations.