Yep, Glider. According to Cruisers of the US Navy 1922 - 1962 by Stefan Terzibaschitsch, the USS Augusta went in for modifications October 1944 and re-emerged in February 1945. In July 1945, She took Truman to the Potsdam Conference and her hull was painted uniform colour, without the lower half being darker, based on a photo in the book taken at that time, so this would suggest the image was taken sometime after her refit in February but before July.
Probably the original image caption, but the Northampton Class cruisers never had cage masts, they had tripod masts.
Probably the original image caption, but the Northampton Class cruisers never had cage masts, they had tripod masts.