400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=British+autography,+collection+fac-similies+hand+writing+royal+illustrious+personages,+their+authentic+portraits,+publ.+J.+Thane+[ed.+T.+Thane].+[With]+british+autography because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.