Matt, I believe the Chicago photo (August 15, 1942) you posted shows she had the 03 level 20mm posts done in a different way from Northampton. Chicago�s added 20mm platforms extended forward from the bridge while Northampton�s 20mm guns were inside the original bridge level. I also think it�s not certain these 20mm guns were positioned higher above the 03 level floor on Chicago - at least it seems the floor of the extended platform was even with the 03 bridge floor level (if you consider the height of the floor bracing under the floor of the bridge). As I�m not aware of any photo showing the insides of this bridge level at the given time I cannot prove any raised platform like on the Northampton.taskforce48 wrote: ... I find the raised 20mm's on the bridge wings interesting and wonder if the Chicago had the same fit with slightly different bulwark. ...
Also, Chicago definitely had no additional director tubs at the Mk19 level at the time of the Savo Battle, just railings (judging from other photos before and after the battle).


