 Naval architects and sailors from the Western hemisphere claimed that the Japanese battleships were too "top-heavy" and critics often mocked these vessels by nicknaming them "Christmas Trees".Uniquely the battleship "" received a prototype of the pagoda-style tower-mast that would eventually be used on the upcoming s, then still in the design phase, rather than the pagoda masts used on her sister ships and other modernized World War I-era capital ships.During the same interwar period, the Royal Navy implemented the "Queen Anne's Mansions" style conning tower and bridge, either retrofitted World War I-era battleships (three of the , ) or for new battleships ( and classes).