This is the JSC 1/400 paper kit of the DKM Königsberg, part of the Kriegsmarine's "K" class of light cruisers (along with her sisters Köln and Karlsruhe). These ships were well-armed and make an attractive subject for the modeler. But they were not, apparently, very effective ships. They were poor sea boats, unsuited for Atlantic service. Königsberg and Karlsruhe were both sunk during the German invasion of Norway in 1940. Köln served as a training ship and shelled advancing Allied forces even after being sunk at Wilhelmshaven in March 1945.
I dressed up the JSC kit with railings and ladders from Tom's Modelworks, plus masts and yards made from brass rod and rigging made from stretched sprue.