By A Mystery Man Writer
The most powerful naval guns of World War II
Germany 28 cm/52 (11) SK C/28 - NavWeaps
KRIEGSMARINE CENTRAL - KM Ship Plans/Discussion, Page 11
28-cm-Schnelladekanone C/28 – Wikipedia
Germany 28 cm/40 (11) MRK L/40 - NavWeaps
Scharnhorst-class battleship - Wikipedia
Germany 28 cm/50 (11) SK L/50 - NavWeaps
Germany 28 cm/50 (11) SK L/50 - NavWeaps
Germany 28 cm/52 (11) SK C/28 - NavWeaps
15 cm SK C/28 - Wikipedia