cover 1870 (c.) native envelope from Hyderabad to Karachi, bearing, on reverse, ½a. cancelled with "K-2" duplex and with a good strike of the "MAIL GUARD/NO 1" framed d.s., and 1890 (21 Feb.) envelope from Nandod to Bombay, bearing 1874 9p. (6) with squared-circle d.s. -- most attractive