bearing Koban 5s. cancelled by four leaf propeller obliterator (type K) with a fine strike of the small Shanghai type II c.d.s. in lower corner and Yokohama transit; fresh and fine and thought to be the ealiest recorded date of the dunb obliterator" /> cover 1887 (25 Mar.) envelope to U.S.A.<I> "via Japan"</I> bearing Koban 5s. cancelled by <I>four leaf propeller</I> obliterator (type K) with a fine strike of the small Shanghai type II c.d.s. in lower corner and Yokohama transit; fresh and fine and thought to be the ealiest recorded date of the dunb obliterator | Christie's