India Rocket Mail – 1935 (Apr 13) Sikkim Durbar Rocket Experiments 2 covers bearing special blue and yellow 2r label tied by fancy cachet ”ROCKET MAIL EXPERIMENTS/SIKKIM”, one “Over river Sangtam” and another “OVER RIVER RUNGPO“, each signed by Stephen H. Smith, dely cds on reverse, fine

Catalogue No: -
Catalogue Value: £-
Condition: Cover