I think there were?
One of the first A10's I had, used a nacelle type headlamp. The "bucket" bolted to a panel, but there was no provision for that part EVERYONE is looking for, that goes over the handlebars, and the top of the triple tree.
But, I'd have to say for myself, never having owned or disassembled one of the highly desireable full nacelle units, I cannot say if the one I had, was entirely complete... I thought it was...