cover Undated envelopes (7) franked at ½a. (6) or 1a. cancelled "B" in bars with "BUSREH" c.d.s. or "BUSREH" c.d.s., 1871 envelope bearing ½a. tied by "BUSREH/19" duplex, 1873 envelope bearing ½a. tied by "BUSSORAH" duplex, 1890 4½a. stationery envelope to Paris cancelled by small "BUSRAH" squared-circle d.s., 1905-14 envelopes (4) franked at 2½a. and cancelled by large "BUSRAH" squared-circle d.s., and 1911 envelope registered to Bombay franked at 4½a. and cancelled by "BUSRAH" c.d.s.; also a range of stamps/pieces with various cancels