Keywords: Kure midget subs1.jpg US Navy Historical Center caption Japanese Type D Koryu Midget Submarines In a drydock at Kure Naval Base Japan 19 October 1945 There are at least four different types of midget submarines in this group of about eighty-four boats though the great majority are of the standard Koryu type The two boats at right in the second row appear to have an enlarged conning tower and shortened hull superstructure The two boats at left in that row are of the earlier Type A or Type C design as are a few others further back in the group http //www history navy mil/photos/sh-fornv/japan/japtp-ss/mdg-d-2 htm US Navy Historical Center Photo 80-G-351875 1945-10-19 Official U S Navy Photograph now in the collections of the National Archives PD-USGov-Military-Navy other versions Kōryū Kure Naval Arsenal Kurahashijima |