[VAL] Airstream windows - curved or flat?

[Warren Keuffel <wkeuffel@xxxxxxxxxxxx>]

All the windows in  my '64 Overlander are flat. Many of the windows  
I've seen on old Airstreams (such as in the DIY series) have been  
curved to match the contours of the body. Yet, in the pix of the '65  
Overlander in the vintageairstream.com site, it appears that the  
windows are flat, like mine, but I can't tell for sure.

Do the pix show flat or curved windows? Which should mine be?

Thanks,
Warren