Government Edict-board and Regulations at the Ōmon.
Reading edition
Up to the time of the Restoration—some 30 odd years ago—the following official regulations were posted up before the Ō-mon (great gateway) of the Yoshiwara:—

The “
Ō-mon
” or Entrance Gateway of the Yoshiwara.
“Persons other than doctors are forbidden to enter riding in Kago (palanquin) or norimono (sedan chair).
“Long weapons are forbidden.”15 [This meant spears or long swords, and also other warlike weapons which formed part of the ordinary paraphernalia of a Daimyō’s (noble’s) train.]”