Namely the 2A3 SM-54 Kondensator-2P (406mm) and the 2B1 Oka (420mm Gun-Mortar). I'd like to know how many were built, how high the gun could elevate, how heavy the shells were etc. Anything and everything! Any help would be greatly appreciated! Also, I expect that this: http://svsm.org/gallery/2p Is actually the Oka, (mortar shell in front and no recoil recuperator above the barrel?) and this: http://jedsite.info/tanks/india/is_series/sm-54/sm54-archive.html Is the Kondensator. Any help on clarifying which is which is appreciated too. [ 14. December 2004, 04:11 PM: Message edited by: FLOZi ]