This relatively uncommon cover(w/ long letter on WASHI paper; quite clean, but with shortened top, and scuffs on the top layers of the WASHI envelope(bottom of back side)) was sent from Ryuzan, Korea(then occupied by the Japanese), to Okayama Prefecture, Japan, on November 26, 1927! The person who sent this mail was connected to the Ryuzan Railway Company! The red, 3-Sen Japanese definitive is in quite good condition! The CDS from the Ryuzan P.O. is superb! Noted imperfections aside, this remains a nifty piece of Korean and Japanese postal history!