Newspaper photo for the Holland submarine on display at the Bronx Fair.
Unknown, Underwood and Underwood photo
The Republican-journal., June 04, 1917, Page 3, Image 3, <a rel="nofollow" class="external free" href="http://nyshistoricnewspapers.org/lccn/sn84024315/1917-06-04/ed-1/seq-3/">http://nyshistoricnewspapers.org/lccn/sn84024315/1917-06-04/ed-1/seq-3/</a>