Updated 15 July 2008

USS Boston in 1888
6"/30 (15.2 cm) gun on Mark 2 Mounting
Note the geared track and the 6" (15.2 cm) projectile
U.S. Naval Historical Center Photograph # NH 56535

6" (15.2 cm) gun on USS Newark (C-1)
An inclined-recoil mounting, possibly Mark 3 Central Pivot
Detroit Publishing Company Collection Photograph
Library of Congress Photograph ID LC-D4-20655

6"/35 (15.2 cm) gun (?) on Second-Class Battleship Texas
In the foreground is a Spanish mine removed from Guantanamo Bay
Detroit Publishing Company Collection Photograph
Library of Congress Photograph ID LC-D4-21019

Crewman "Frenchy" and 6"/30 (15.2 cm) gun on USS San Francisco (C-5) about 1898
Note the quick-release carrying yoke for the projectile and the rammers
Detroit Publishing Company Collection Photograph
Library of Congress Photograph ID LC-D4-20942

6"/30 (15.2 cm) gun formerly on USS Concord PG-3
Photograph copyrighted by Dana Payne and used here by permission of Woodland Park Zoo

6"/30 (15.2 cm) gun formerly on USS Concord PG-3
Photograph copyrighted by Dana Payne and used here by permission of Woodland Park Zoo

6" (15.2 cm) gun on  USS Susquehanna (ID # 3016) circa 1916
Mark 6 or Mark 7 Pedestal Mounting
U.S. Naval Historical Center Photograph # NH 42089

6" (15.2 cm) gun aboard USS Santa Paula (ID 1590) circa 1919
U.S. Naval Historical Center Photograph # NH 103315