My 66 Trade Wind came with the Owners Manual, sales brochures and appliance manuals. It's fun as the original owner mades lots of hand written notes in the Manual about things like how to light the water heater, and how many flushes of the toilet fills the black tank (56 she notes). They probably kept a clip board in the bathroom and had daily allotments. Rationing flushes!
But their attention to detail is possibly a reason my 66 is in pretty good original shape. I understand they owned it for 30 years.
The Manual is generic for all
1966 Airstreams. The pages useful for me are the plumbing, propane, and electrical wiring diagrams. Oh, and I did learn that the furnace blows heat out the front, and draws return air from the floor mounted registers in the bathroom and under the gaucho.
I think you would be disappointed in a $48 copy of this manual, unless you wanted it for fun. PM me if you want additiional information.
David