O 1/R/NO 23/89" single ring d.s. (latest recorded date). An exceptional item from this Expedition. Photo" /> cover 1892 (23 Nov.) ½a. stationery envelope to Bombay cancelled by "R" in circle of bars showing, on reverse, a good strike of the very rare and short-lived "BRANCH FIELD P.O. N<V>O 1/R/NO 23/89" single ring d.s. (latest recorded date). An exceptional item from this Expedition. Photo | Christie's