unused 1890 5c. on 15c. olive-green surcharge, a mint selection including a block of four with surcharge double, a block of four with surcharge inverted, and two pairs - one showing "Flve" for "Five" error, the other pair both showing "REVENUE" omitted - one showing inverted "S" in "CENTS". All errors accompanied by R.P.S. Certificates. Cat. approx. #946. (5 items)