Auction: 14025 - The Philatelic Collector's Series sale
Lot: 777
India
Sikkim Durbar Rocket Experiments
1935 (13 Apr.) over Singtam River envelope, bearing special 2r. yellow and blue label tied by Rocket Experiments cachet and with "over river/singtam." cachet alongside. Scarce with only 118 flown. Cooper S8
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Estimate
£120 to £150
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