I believe I read in one of those "History of Airstream" type books that in the early days of Argosy production, they used the blemished "reject" aluminum panels from the AS factory, but that as demand for the Argosy line picked up, they soon had to have fresh panels as the quantity of "rejects" wasn't adequate to satisfy production demand.
Whether true or not, the fact is that beginning about 1970, and moving forward, AS began experimenting with different alloys. Do a search for "history of aluminum at Airstream" on these forums, and you will find an "official" document that came from AS describing when certain alloys were used. As I recall, a trailer produced in '72 or '73 will *likely* be made of 6061 T6, though some Forums members assert that their early 70's trailers are made of 2024 T3 Alclad, so it was probably a bit inconsistent.
I have never heard that this had anything to do with war time rationing, just Airstream's efforts to reduce costs and improve competitivity/profit.
But as stated above, all Argosy trailers had a factory paint job, mostly because of the steel endcaps, and likely also to differentiate them from the Airstream brand. As I recall, a buyer of a brand new Argosy was not welcomed into the WBCCI, and could not participate in the official rallys and caravans...kind of a red-haired step child situation, to coin a non-politically correct term.
good luck!
|