404. That’s an error.

The requested URL /bookmarks/mark?op=edit&bkmk=http%3A%2F%2Fdata.bnf.fr%2Ffr%2F14479984%2Fmina_agossi%2F&title=Mina+Agossi+%281972-....%29 was not found on this server. That’s all we know.