RUSSIA USSR Baloon Fly 50 Anniv Cover Moscow J2454

RUSSIA USSR Baloon Fly 50 Anniv Cover Moscow J2454Osoaviakhim-1 was a record-setting, hydrogen-filled Soviet high-altitude balloon designed to seat a crew of three and perform scientific studies of the Earth's stratosphere. On January 30, 1934, on its maiden flight which lasted over 7 hours, the balloon reached an altitude of 22,000meters (72,000ft). During the descent the balloon lost its buoyancy and plunged into an uncontrolled fall, disintegrating in the lower atmosphere. The three crewmembers, probably incapacitated by high g-forces in a rapidly rotating gondola, failed to bail out and were killed by a high-speed ground impact. Postal Stationery Envelope issued: 05.11.83Cover: Moscow, 30.01.84Condition: Unused, very fine. Look scanned picture(s), pleaseFor more RUSSIA / USSR issues visit my eCRATER Store, please: Click HereShipping: FIRST ITEM Worldwide airmail letter 2.00 $FIRST ITEM Worldwide airmail registered letter 5.00 $Each next item – add only $0.50Please note, that I‘m not responsible for any purcarse(s) lost or damaged in the mail. If the letter is lost in the mail (non-registered), the payment for the item(s) cannot be refund.If you require registered letter ask after looking, please.For combine shipping, wait my invoice, please.Payment: Paypal. Items will be send in two days after payment is received. I'm waiting payment within 7 daysIf you have questions contact me.You are welcome to my eCRATER store for stamps, FDC’s, envelopes, postal stationeries, postcards, maximum cards……..