I've been saving photos of Airstreams as I find them on the web. Attached
is one of a '47 Silver
Streak that was in the vintage area of a rally. Unfortunately I have
no record of whose it is, or
whose web site it came from. It looks pretty much the same as the one
in question.
I believe there is a history of the Sliver Streak out there on one of
the links from Airstream.net or
Airstream Central.