Emden's proposed twin-gun battery

Were the 1920s Emden's proposed four twin main-battery positions enclosed turrets or shielded mounts?

Probably enclosed turrets, though the design changed between options before ending with eight single mounts.

The question concerns the proposed four twin main-battery positions for the 1920s Emden. The recollection favors enclosed turrets, though the design moved between turret and shielded-mount options. The completed ship instead received eight single mounts to spread out the firepower. The precise preferred arrangement remains tentative.