Updated 07 October 2011

Cruiser Olympia ca. 1901
U.S. Naval Historical Center Photograph # NH 105067-A

8"/35 (20.3 cm) on USS Columbia C-12
Note the inclined hydraulic recoil cylinder, the weight of the gun itself helped to return it to battery.  Also note the large training gear on the back on the mount.

Assembled 8"/35 (20.3 cm) gun at the Washington Navy Yard Gun Factory
Detroit Publishing Company Collection Photograph
Library of Congress Photograph ID LC-D4-21322

8"/35 (20.3 cm) aboard USS New York ACR-2 about 1898
U.S. Naval Historical Center Photograph # NH 85672

8"/35 (20.3 cm) aboard USS New York ACR-2 about 1898
Detroit Publishing Company Collection Photograph
Library of Congress Photograph ID LC-D4-20747

Breeches of 8" (20.3 cm) guns on USS Indiana B-1
Although the Library of Congress identifies these as 13" (33 cm) guns, I believe that they are actually 8"/35 (20.3 cm) guns
Detroit Publishing Company Collection Photograph
Library of Congress Photograph ID LC-D4-20424

Inside one of the 8" (20.3 cm) turrets on USS Oregon B-3
Although the Library of Congress identifies this as a 13" (33 cm) turret, I believe that it is actually an 8"/35 (20.3 cm) turret
Detroit Publishing Company Collection Photograph
Library of Congress Photograph ID LC-D4-20835

USS Minneapolis C-13 in 1898 showing her 8"/40 (20.3 cm) bow deck gun
U.S. Naval Historical Center Photograph # NH 63591

Forward 8"/40 (20.3 cm) turret on USS Maryland ACR-8 during a shoot in Manila Bay, Philippine Islands, circa 1906
U.S. Naval Historical Center Photograph # NH 73127

8"/40 (20.3 cm) gun on USS Maryland ACR-8
Breech is engraved as follows:

    U.S. Naval Gun Factory W.N.Y.
    8 in. Gun Mark V No. 98

W.N.Y. = Washington Navy Yard

U.S. Naval Historical Center Photograph # NH 73128

Sailors posing aboard USS Iowa B-4
 Note that the inboard gun has its muzzle blown off, which probably occurred during a gunnery exercise in 1904
U.S. Naval Historical Center Photograph # NH 75671

Loading an 8" (20.3 cm) projectile aboard Kearsage B-5

06 January 2009  - Benchmark
07 October 2011 - Added two mislabeled Library of Congress Photographs