Originally Posted by L911
The trailer tongue has a stamp date of 10/70. It has a single bed on the right/passenger side, Im sure thats origiunal, the other side has stock AS closets & desk. The trailer is actually slightly less than 25' body wise, with the bumpers it might stretch to 29'.
Airstream always measures from bumper to hitch, then "rounds" up or down, whichever is convenient for where the trailer fits into their marketing plan.
The "single" bed on one side was probably originally a gaucho that folded down to a double bed, what you're describing is the original mid-double plan, with cabinetry on one side and a folding couch/double on the opposite.