OKUBO got Yamato-nishiki type silk and red and white damask silk in Kyoto City and had one of a pair of the banners made secretly at the residence of the Satsuma clan in Kyoto.
大久保が京都市中で大和錦と紅白の緞子を調達し、半分を京都薩摩藩邸で密造させた。