This relatively uncommon, business cover(w/ long letter on WASHI paper; w/some minor stains here and there, and intact back flap, but with some noticeable tears connected to the original opening of the envelope) was sent from Takao, Taiwan(then occupied by the Japanese), to Fukuoka Prefecture, Japan, on December 13, 1920! The red, 3-Sen Japanese definitive is in very good condition! The CDS from the Takao P.O. is quite good, though somewhat light/faded. Noted imperfections aside, this remains a nifty piece of Taiwanese and Japanese postal history!