Does anyone have any information on Soviet floating batteries, specifically plavayushaya batteriya DB-type vessels? All I can find is http://henk.fox3000.com/Aer2.htm about 1/3 rd of the way down the page, kit number 14407 - The Soviet 100-mm buoyant battery DB. I've a done a quick search, including some Russian sites but come up with nothing so far. Pointers would be appreciated.