1935 INDIA SIKKIM Rocketgram card with red "Rocket mail experiment by sanction Sikkim Durbar" and violet "ON SIKKIM DARBAR SERVICE/Tashi Namgyal/FIELD 8/4/35" marking. Rocket fee rupees two with motifs of train, steamer, helicopter and car. With Stephen Smith GANGTOK autograph on reverse, SCARCE. SEK0 (Image)