/usr/share/man/man1/emacs23-nox.1.gz is in emacs23-nox 23.3+1-1ubuntu9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/emacs.emacs23.1.gz
/usr/share/man/man1/emacs.emacs23.1.gz