cover 1890 (July) unstamped envelope (opened-out, small faults) from Kahuta via Gujrat to Rawalpindi bearing, on reverse, ½a. black on white with square seal handstamp, and 1892 (July) envelope from Kahuta to Rawalpindi franked at ½a. and bearing, on reverse, 1p. black on white pair cancelled by square seal handstamps; both showing framed "POSTAGE DUE" handstamps

Details
cover 1890 (July) unstamped envelope (opened-out, small faults) from Kahuta via Gujrat to Rawalpindi bearing, on reverse, ½a. black on white with square seal handstamp, and 1892 (July) envelope from Kahuta to Rawalpindi franked at ½a. and bearing, on reverse, 1p. black on white pair cancelled by square seal handstamps; both showing framed "POSTAGE DUE" handstamps