OKAWA UNYU K.K.
The flag comes from a 1902 chart republished in Fune to Hata in 1994 and also appears on the 1901 and 1910 sheets supplied through Alan Watt.
The flag comes from a 1902 chart republished in Fune to Hata in 1994 and also appears on the 1901 and 1910 sheets supplied through Alan Watt.