pencil bombs
... that Franz von Rintelen, a German spy living in New York during World War I, used pencil bombs to sabotage Allied shipping?
... that <a href="./Franz_von_Rintelen" id="mwEaI" rel="mw:WikiLink" title="Franz von Rintelen">Franz von Rintelen</a>, a <a class="mw-disambig" href="./German" id="mwEaM" rel="mw:WikiLink" title="German">German</a> spy living in <a class="mw-disambig" href="./New_York" id="mwEaQ" rel="mw:WikiLink" title="New York">New York</a> during <a href="./World_War_I" id="mwEaU" rel="mw:WikiLink" title="World War I">World War I</a>, used <b id="mwEaY"><a class="mw-redirect" href="./Pencil_bomb" id="mwEac" rel="mw:WikiLink" title="Pencil bomb">pencil bombs</a></b> to sabotage Allied shipping?