1930/1938 selection of seven Sikkim Rocket Experimental mailings, comprising two cards, two envelopes and three single sheets, all signed by Stephen H. Smith, with a variety of labels and special event cachets, also comes with eight covers flown by the famous pilot Mrs Victor Bruce, a number of other rocket mail items, pigeongram envelope with message enclosed and a balloon flight cover front, a scarce and useful lot in good to fine condition.
