"Graves and more Graves!"
Posener Tageblatt of October 17, 1939, p. 1.
(Enlarge.)

This cutting is an account by a clergyman, the Reverend Berger,
of the discovery of one hundred Germans, six weeks after they had
suffered a cruel death at the hands of the Poles. His description of
how the victims were identified is especially interesting
since it shows how careful the Poles were to leave no personal belongings
on those whom they murdered, whereby the latter might be identified.

The Polish Atrocities
Against the German Minority in Poland.
Edited and published by order of the Foreign Office
and based upon documentary evidence.
Compiled by Hans Schadewaldt.