Among other things, he presented to the bakufu (Japanese feudal government headed by a shogun) a model of live steam trains that ran by steam power in the same way as a real steam locomotive and was able to carry people.
彼が幕府に献上した品物の中に人を乗せて走ることができるほどのライブスチーム（本物の蒸気機関車同様、蒸気動力で動く鉄道模型）があった。