USN CC1 Lexington [1944] (late-war 20x 5/38)

Lexington-class battlecruiser
 what-if late-war refit; stripping down superstructure and installed CB Alaska-style superstructure with 20x 5"/38cal in twin enclosed turrets

- studies started as early as 1911 to counter the Japanese' construction of the Kongō class. Laid down 1920, but was cancelled in 1922 due to the Washington Naval Treaty (though 2 were converted into aircraft carriers: Lexington and Saratoga)
- they were originally meant to carry 8x 406mm/50cal Mk guns in 4 dual turrets, 16x single 6" (casemate and open mounts), 4x single 3" (for AA), and beam-mounted 21" TT x8.

https://en.wikipedia.org/wiki/Lexington-class_battlecruiser