The first Tenshu of this type was Sumoto-jo Castle (Sumoto City, Hyogo Prefecture), constructed in 1928 and the oldest of the currently existing Tenshu including restored Tenshu and reconstructed Tenshu.
この種の天守の最初のものは昭和3年（1928年）の洲本城（兵庫県洲本市）であり、復元天守・復興天守を含めて現存のものでは最も古い。