Thanks, Kadri. I know about this site. I don't know if I got it there or elsewhere, but where I got it from it said no commercial use is ok. Nothing about credits. I wouldn't know where to turn to if I wanted to buy some rights for some unforeseen (unlikely) commercial use, though. I think I found the same loc (or very similar) as a sketchup model. There's lots of stuff out there I have found out by now, and not everybody cares about use or credits.