<page_title> German submarine U-255 </page_title> <section_title> Ships attacked </section_title> <table> <cell> 20 September 1942 <col_header> Date </col_header> </cell> <cell> Silver Sword <col_header> Ship </col_header> </cell> <cell> United States <col_header> Nationality </col_header> </cell> <cell> 4,937 <col_header> Tonnage </col_header> </cell> </table>
On 20 September, the German submarine U-255 attacked the 4,937 ton American merchant ship Silver Sword.