On Bofors Wilton-Fijenoord 15cm for Dutch cruisers

[GianmarcoBianchi]

Such guns of Marks 9, 10, and 11 were utilized by HNLMS De Ruyter and Tromp. Would anyone offer a plan for Marks 10 and 11, the single mount for De Ruyter and twin mount for Tromp? Relevant info were rare, especially machinery structures.

 

[Dorknought]

Campbell's Naval Weapons of WW2 has a technical plan of the twin mount in Tromp.