Looks like the USS Neptune but it might be the Jason, Orion, Nereus, or Proteus as all look very similar.
USS St. Louis the last Brooklyn. Modified in design by adding 5"/38 twin turrets instead of 5"/25 single AA guns.
Wichita aft superstructure tight to the second stack, a 4 dual 5" turrets in accordance with "London" treaty. ?
Then it must be CL 50 Helena the St. Louis' sister. These are the only two that match the configuration.
Yeep. I tried accessing this url but it took too long for impatient little me to load so I went off on a wild goose chase elswhere..... http://www.history.navy.mil/photos/images/h95000/h95815.jpg Yes indeed, the Helena. tom