At least 35 different final designs were proposed. All numbered with Roman numerals ("I" through "XVI-D"), the first five ("I"–"V", variations upon "K") were completed on 15 November 1935. They were the first to employ so-called "paper" weight reductions: not counting certain weights in the ship's 35,000 long ton limit that were not specifically part of the definition of standard displacement. In this case, even though there was designed storage room for 100 shells per main battery gun and an extra 100 rounds, the weight of the rounds did not figure toward the treaty-mandated limit.