When using NBG Web sites, you may encounter documents, illustrations, photographs, or other content contributed by or licensed from private individuals. You can sometimes tell if content is copyrighted if it has the copyright symbol, the name of the copyright holder, or the statement "All rights reserved." However, a copyright notice is not required by law and therefore not all copyrighted content is necessarily marked in this way.

Transmission or reproduction of copyrighted items requires the written permission of the copyright holders.