cover 1803-20 entires/entire letters (13), a study of the double oval-framed "G.P.O./Pt Pd" d.s. (HG 10, 10a) comprising types with (9) and without (4) segments, one originally charged as a double letter but corrected with a strike applied on a piece of paper and affixed over the original strike, three additionally showing "G.P.O./Bg Pg" oval d.s. (HG 11), and one to Chandernagore; fair to fine strikes