By Category: Helicopter

Lot Number: 304
Date: 1946, Jul 5
Est. price: £8.00
Category: Helicopter

Description: First helicopter flight from Bridgeport, red/white/blue souvenir cover with picture of Sikorsky S 51 addressed to London, franked 30c air, large violet "20th Anniversary of Inauguration of Regular New England Air Mail Service" cachet.
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