1935 (7 Apr) Rocket Mail Experiment, with special Silver Jubilee label and cancels, overprinted "Rocket Mail Experiments by Sanction SIKKIM DURBAR", signed Stephen Smith, rare (Cat No. 1C1) (Image)

Est.$500

1935 (10 Apr) Rocket Mail Experiment cover with special blue Silver Jubilee label and cancels, from Ray to Surumsa, signed Stephen Smith, rare (Cat No. 8C1) (Image)

Est.$500

1936 2rs blue, imperforate se-tenant gutter sheetlet of four in dark blue (printed on both sides), overprinted "Livestock" in red, signed Stephen Smith, unused without gum as printed, fine and rare (Cat No. 11A1a, var) (Image)

Est.$500

1936 2rs blue, imperforate se-tenant gutter sheetlet of four in violet (printed on both sides), overprinted "Livestock" in red, signed Stephen Smith, with inscription "incorrect color, violet - should have been blue", numbered "9" out of only 13 (!) printed, unused without gum as printed (Cat No. 11A1a, var) (Image)

Est.$750

1936 (28 Sep) 2rs blue, imperforate single used in combination with 9p George V, used from Gangton on Sikkim Rocketgram, handstamped "Sikkim R.84" in violet, signed Stephen Smith on both sides, with contents of the rocket on back, fine (Cat No. 11C1) (Image)

Est.$250

1936 2rs red brown, imperforate se-tenant gutter sheetlet of four (printed on both sides), signed Stephen Smith, unused without gum as printed, h.r., fine and rare (Cat No. 12A1a) (Image)

Est.$250

1936 (29 Sep) 2rs red brown, imperforate single used on Sikkim Rocketgram, handstamped "Despatched by H.H. the Maharajah" in violet, signed Stephen Smith on both sides, with contents of the rocket on back, fine (Cat No. 12C1) (Image)

Est.$250

1936 2rs violet, imperforate se-tenant gutter sheetlet of four (printed on both sides), signed "Complete Sheet Stephen Smith", unused without gum as printed, fine and rare (Cat No. 13A1a) (Image)

Est.$250

1936 2rs dark blue, imperforate se-tenant gutter sheetlet of four (printed on both sides), signed by Stephen Smith, unused without gum as printed, minor stain at bottom margin, otherwise fine (Cat No. 14A1a) (Image)

Est.$250