there are mainly two types; one disguised as a commodity , and a two-step weapon by fitting another weapon with a small blade . 主に日用品などに偽装したものと、他の武器に小さな刀身を仕込み二段構えの武器としたものの二種類がある。
from november 1984 , jnr introduced nine sets of ' light-duty cars ' designed to cut further costs by installing two-step upright sliding windows and by adopting transfer printing technology for numbering . 同年11月からは、窓の2段上昇化やナンバーの転写表記化など、より一層のコストダウンを図った「軽装車」を9編成投入.。
wada ' s colleague , kuniji yashiro claimed in " a study of azuma kagami " in 1913 that there was a big difference between the shogunal record of the three generations of the minamoto clan and that of the subsequent three generations of shogun , advocating the hypothesis of two-step compilation . 1913年（大正2年）、和田の同僚であった八代国治は、『吾妻鏡の研究』で、源氏三代の将軍記とそれ以降三代の将軍記とは大きな隔たりがあるとし、編纂二段階説を唱える。
however , takashi masuda and hiroshi kasamatsu opposed the hypothesis of two-step compilation after wwii , and fumihiko gomi also claimed that there was little positive evidence to prove the hypothesis and concluded the whole work was compiled for several years until 1304 , or the latter compilation period , according to kuniji yashiro . ただし二段階説には戦後、益田宗、笠松宏至らの批判があり、五味文彦も二段階説を裏付ける積極的な証拠は乏しいとして、全てを八代国治の言うところの後半の編纂時期、1304年（嘉元2年）までの数年間とする。
