Updated 11 March 2012

A turret on HMS Dreadnought
Note large gunport openings, sighting hoods, lack of gunshields and 12-pdr 18cwt guns atop the turret.  These were all seen as weaknesses in the protection of these turrets.
The small brackets around the gunport are for attaching bloomers
Bain News Service Photograph
Library of Congress Photograph ID LC-DIG-ggbain-17494

HMS Indomitable circa 1910
Note the bloomers covering the gunports
Bain News Service Photograph
Library of Congress Photograph ID LC-DIG-ggbain-16724

Bow Turret of HMAS Australia in 1918
Note the Declination Marks, sighting hoods and the built-up nature of the gun barrels
IWM Photograph Q18740

Another view of the same turret on HMAS Australia in 1917
Note the armor plates on the turret top which were added following the Jutland (Skagerrak) battle
IWM Photograph Q18717

Various pictures of 12" (30.5 cm) guns and projectiles aboard HMAS Australia
Search via "H01964", "RELAWM07947", "EN0010," "EN0011", "EN0012", "EN0013", "EN0014", "EN0015", "EN0529" and "EN0530"

26 December 2008 - Benchmark
11 March 2012 - Fixed Australian War Memorial Link, added to picture captions