Caption: Submarine Chasers at the Norfolk Navy Yard, 2 April 1918.
Shown: SC 223, SC 221, SC 136, SC 331, SC 332, SC 222, ?, SC 134, SC 133, ?, SC 135.

Submarine Chaser SC 221 and others
Photograph of submarine chasers. Naval Historical Center, # NH 75528. Thanks to Dan Treadwell for submitting the image.