 | Helicopter, 1946, Jul 5
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. Perceived Value |
 | Helicopter, 1947, Nov 5
Special flight Gravenhage to Brussels, arrival cds on front, violet flight cacher, souvenir card franked 20c. Perceived Value |
 | Helicopter, 1948, Jan 10
Helipcopter, AM34 first service LA area, PM Rosemead Jan 10th, bs Rverside, Jan 10th, flight cachet. Perceived Value |
 | Helicopter, 1948, Jun 1
BEA, inauguration first helicopter-operated public mail service, Peterborough to Norwich, bs, printed souvenir cover. Perceived Value |
 | Helicopter, 1948, Jun 1
BEA inauguration first helicopter-operated public mail service, Peterborough to Cromer, bs, black/white illustrated 'Helicopter Mail Service' souvenir cover. Perceived Value |
 | Helicopter, 1949, May 22
Sweden special helicopter postal flight, Bromma to Linderangen-Stockholm, blue cream souvenir card franked 10o, commemorating 'A.B.Transport 1924-1949' and 'Finlandsflyget 1924-1949', fine strike red 4 line flight cachet. Perceived Value |
 | Helicopter, 1949, Sep 19
USA, first Experimental Helicopter Service Chicago Area, Waukegan-Chicago, cachet, b/s Perceived Value |
 | Helicopter, 1950, May 14
Sweden, F/F helicopter flight SAS Air Meeting, Bromma Airport to Stadshuset, gree/cream souvenir cover. Verso there is a note saying "Helicopter flight cancelled by police". Perceived Value |
 | Helicopter, 1950, Aug 21
Sabena F/F Belgian postal service by helicopter, round trip of nine stops fromTurnhout-Turnhout, souvenir card with nine intermediate transit postmarks and stamps. Perceived Value |
| Helicopter, 1950, Oct 27
Dedication Orrin Russell Fox Heliport, silver/blue vignette, franked C39 canc Pasadena/ca cds, bs Los Angeles 27/10. Perceived Value |
 | Helicopter, 1951, Apr 01
Special flight Danish Stamp Centenary, Rosenberg to Kastrup, black/yellow/red/cream souvenir cover, franked FDI Danish Stamp Centenary set of 2, canc special postmark. Perceived Value |
 | Helicopter, 1951, Apr 1
Special flight Danish Stamp Centenary, Rosenberg to Kastrup, black/yellow/red/cream souvenir cover, franked FDI Danish Stamp Centenary 25o 2, canc special postmark, typed "1ste Helicopter-Flyvning Med Post 1 Danmark". Perceived Value |
 | Helicopter, 1951, Apr 1
Special flight Danish Stamp Centenary, Rosenberg to Kastrup, black/yellow/red/cream souvenir cover, franked FDI Danish Stamp Centenary set of 2, canc special postmark. Perceived Value |
 | Helicopter, 1951, Sep 24
Belgian Philatelic Congress special helicopter flight, Antwerp to Turnhout, Turnhout Helipost arrival ds on front, attractive multicoloured souvenir cover franked 1.75F+25, canc special congress depart postmark, black framed flight cachet. Perceived Value |
 | Helicopter, 1951, Sep 24
Belgian Philatelic Congress special helicopter flight, Antwerp to Brussels, Brussels Helipost arrival ds on front, attractive multicoloured souvenir cover franked 1.75F+25, canc special congress depart postmark, black framed flight cachet. Perceived Value |
 | Helicopter, 1951, Sep 24
Belgian Philatelic Congress special helicopter flight, Anvers to Mons, Mons arrival ds on front, attractive multicoloured souvenir cover franked 1.75F+25, canc special congress depart postmark, black framed flight cachet. Perceived Value |
 | Helicopter, 1951, Sep 24
Belgian Philatelic Congress special helicopter flight, Anvers to Liege, Liege Helipost arrival ds on front, attractive multicoloured souvenir cover franked 1.75F+25, canc special congress depart postmark, black framed flight cachet. Perceived Value |
| Helicopter, 1951, Sep 24
Belgian Philatelic Congress special helicopter flight, Antwerp to Ghent, Ghent arrival ds on front, attractive multicoloured souvenir cover franked 1.75F+25, canc special congress depart postmark, black framed flight cachet. Perceived Value |
| Helicopter, 1951, Sep 24
Belgian Philatelic Congress special helicopter flight, Antwerp to Kortrijk, Kortrijk arrival ds on front, attractive multicoloured souvenir cover franked 1.75F+25, canc special congress depart postmark, black framed flight cachet. Perceived Value |
 | Helicopter, 1952, Jun 1
France, special Council of Europe helicopter flight, Strasbourg to Luxembourg, 1/6 arrival ds on front, special card, franked Council of Europe 30F, canc special Strasbourg Expo cds, red framed souvenir flight cachet. Scarce. Perceived Value |
 | Helicopter, 1953, Apr 4
F/F Linnas to Stockholm, 7/4/arrival ds on front, Perceived Value |
| Helicopter, 1953, Aug 1
Berlin acceptance for SABENA first scheduled helicopter mail service, Rotterdam-Brussels, special vignette and flight cachet, postmarked Berlin-Zentralflughaffen. 40 flown. Perceived Value |
 | Helicopter, 1953, Aug 3
Sabena, first helicopter flight, Brussels to Rotterdam, bs 3/5, plain cover franked 180c canc special 3/5/1953 postmark, red helicopter cachet. Perceived Value |
 | Helicopter, 1953, Aug 5
Sabena, first helicopter flight, Lillie to Brussels, bs 5/10, special postmark, blue framed flight cachet, black straight line 'Par Helicoptere Lillie-Brussels', plain cover franked 30F. Perceived Value |
 | Helicopter, 1953, Aug 5
Sabena, first helicopter flight, Brussels to Lille, plain cover franked 180c canc special 5/5/1953 postmark, black helicopter cachet on front, green framed flight cachet verso. Perceived Value |
 | Helicopter, 1953, Aug 5
Sabena, first helicopter flight, Brussels to Lille, bs 5/10, special postmark, printed black/red/cream souvenir envelope. Perceived Value |
 | Helicopter, 1953, Aug 8
Sabena, first helicopter flight, Brussels to Rotterdam, bs 8/8, special postmark, printed black/orange/cream souvenir envelope. Perceived Value |
 | Helicopter, 1953, Aug 10
Sabena, first helicopter flight, Brussels to Maastricht, arrival ds on front, special postmark, printed black/green/cream souvenir envelope franked 2F+50c. Perceived Value |
 | Helicopter, 1953, Aug 10
Sabena, first helicopter flight, Brussels to Maastricht, 10/8 arrival ds on front, special postmark, printed black/green/cream souvenir envelope franked 2F+50c. Perceived Value |
 | Helicopter, 1953, Aug 10
SABENA first scheduled helicopter mail service, Brussels-Maastricht, arrival ds on front, plain cover franked 90cx2 canc special commemorative ds, red helicopter cachet. Perceived Value |
 | Helicopter, 1953, Sep 1
SABENA first scheduled helicopter mail service, Brussels-Bonn, bs 5/10, plain cover franked 90cx2 canc special commemorative ds, red helicopter cachet. Perceived Value |
 | Helicopter, 1953, Sep 15
Sabena, first helicopter flight, Brussels to Koln, bs 15/9, special postmark, green framed F/F cachet verso, printed black/yellow/cream souvenir envelope. Perceived Value |
 | Helicopter, 1953, Sep 15
Sabena, first helicopter flight, Brussels to Koln, bs 15/9, special postmark, green framed F/F cachet verso, printed black/yellow/cream souvenir envelope. Perceived Value |
 | Helicopter, 1953, Oct 5
Sabena, first helicopter flight, Brussels to Bonn, bs 5/10, special postmark, green framed F/F cachet verso, printed black/grey/cream souvenir envelope. Perceived Value |
 | Helicopter, 1956, May 7
Sabena, first helicopter flight, Brussels to Duisburg, b/s, printed black/red/cream souvenir envelope franked 2F+ 1F x2. Perceived Value |
 | Helicopter, 1957, Mar 3
France, Sabena first helicopter flight, Paris to Brussels, bs 3/3, special cancellation, black/green/white printed souvenir cover franked 38F, canc Paris Aviation Etrangers cds. Perceived Value |
 | Helicopter, 1957, Mar 03
Belgium, Sabena first helicopter flight, Brussels/Paris, b/s, black/red/green souvenir 'helicopter' cover, franked 4F, special cancellation. Perceived Value |
 | Helicopter, 1957, Apr 13
France, attractive souvenir maxi card franked FDI 1957 Helicoptere 'Oehmichen' (inventor of the helicopter) 30F. Perceived Value |
| Helicopter, 1957, Apr 13
France, souvenir FDC franked FDI 1957 Helicoptere 'Oehmichen' (inventor of the helicopter) 30F. Perceived Value |
 | Helicopter, 1958, Apr 15
Belgium, Sabena special helicopter flight, Brussels/Bonn, b/s, red/yellow/green souvenir cover, franked 2F50, special cancellation and flight cachet. Perceived Value |
 | Helicopter, 1958, Apr 15
Belgium, Sabena special helicopter flight, Brussels/Paris, b/s, black/brown/green souvenir cover, franked 2F50, special cancellation and flight cachet. Perceived Value |
 | Helicopter, 1958, Apr 15
Belgium, Sabena special helicopter flight, Brussels/Rotterdam, b/s, black/blue/purple souvenir cover, franked 2F50, special cancellation and flight cachet. Perceived Value |
 | Helicopter, 1958, Oct 1
France, souvenir maxi card franked FDI 1958 Helicoptere 'Alouette' 1000F, cat SG £21.00 used. Perceived Value |
 | Helicopter, 1959, Jun 07
Germany, special Grobgflugtag helicopter flight, blue/cream 15pf PSC, special Luneburg cancel, multicoloured Expo vignette, purple three line cachet. Perceived Value |
| Helicopter, 1959, Aug 30
Germany, special Sabena helicopter flight from the Luposta Expo in Koln, blue/maroon/cream souvenir card, franked 10pf, special expo cancel, multicoloured Expo vignette, purple Sabena-Helicopter cachet. Perceived Value |
 | Helicopter, 1959, Oct 24
Germany, special 'US Army' helicopter flight from Schoenberg to Tempelhofer, red/cream souvenir card, franked 10pf, special expo cancel, red US Army-Helicopter cachet. Perceived Value |
 | Helicopter, 1960, May 28
Liechtenstein, 30th anniversary airpost, special flight Vaduz-Zurich, arrival ds on front, souvenir cover with imprinted black/yellow commemorative vignette, franked set of 4 of 30th anniversary of First Air Stamps. Perceived Value |
 | Helicopter, 1960, May 28
Liechtenstein special flight, Vaduz to Zurich, 28/5 arrival ds on front, 'By Helicopter' souvenir cover with printed blue/yellow/white vignette, franked FDI 30th anniversary air set of 4, canc special Vaduz/Helicopter Post postmark, Perceived Value |
 | Helicopter, 1961, Sep 01
Austria, special helicopter flight from Rauris to the Sonnblick Observatory, multicoloured souvenir cover, franked 1S80, canc special souvenir flight cancellation ds, black 'Ersttag' cachet, addressed to Sieger. Perceived Value |
 | Helicopter, 1962, Aug 19
Austria, first helicopter flight, Spitzberg to Aspern, red/black/white souvenir cover, franked1S + 20g, special souvenir flight cancellation ds, also Vienna 19/8 cds, addressed to Sieger. Perceived Value |
 | Helicopter, 1962, Aug 30
PRAGA Expo special helicopter flight, special depart ds, cachet and vignette tied by Expo hs, souvenir Expo PPC. Perceived Value |
| Helicopter, 1962, Aug 30
PRAGA Expo special helicopter flight, special depart ds, cachet and vignette tied by Expo hs, souvenir Expo PPC. Perceived Value |
 | Helicopter, 1962, Aug 31
Special helicopter flight, Prague to Vienna, 31/8 arrival ds on front, red/black special helicopter vignette, and blue/brown/white FISA Expo vignette, framed vilet helicopter light cachet. Perceived Value |
| Helicopter, 1963, Feb 03
Germany, special emergency helicopter flight to the East Frisian Islands. Perceived Value |
 | Helicopter, 1963, Feb 14
Germany, emergency helicopter flight , Frankfurt - Pellworm Islands, arrival ds on front, green/cream printed souvenir cover, ex Seiger, franked 27pf. Perceived Value |
 | Helicopter, 1963, Feb 26
Sabena first helicopter flight, Brussels to Einhoven, arrival ds on front, flight cachet, black/gold/white printed souvenir cover. Perceived Value |
| Helicopter, 1963, Sep 8
Germany, special helicopter flight commemorating Russian-German military collaboration, black/yellow vignette E223 Perceived Value |
| Helicopter, 1963, Sep 24
Vatican, special helicopter fight to commemorate 20th anniversary of the German-Russian armistice, printed black/red/cream souvenir cover franked 30L, flight cachet. Perceived Value |
| Helicopter, 1963, Oct 3
Germany DDR, special helicopter flight commemorating Russian-German military collaboration, souvenir cover picturing Generals Diebitch and Vork who collaborated in the War of the Sixth Coalition (1812–1814).This was a coalition of Austria, Prussia, Russia, Sweden, the United Kingdom, and a number of German States which finally defeated France and drove Napoleon Bonaparte into exile on Elba. Perceived Value |
| Helicopter, 1964, Feb 24
Pakistan International Airlines, F/F Helicopter Service, Bogra-Dacca, b/s, official printed souvenir cover. Perceived Value |
 | Helicopter, 1964, Mar 1
Commemorative cacheted ppc flown on 50th anniversary of death of Jorge Newberry, franked 4P Jorge Newbery in cockpit, Scott #328. Jorge Newbery died as a result of an airplane crash on March 1, 1914, in the Argentine province of Mendoza. His name is still widely recognized in Argentina, where the second largest airport, the Aeroparque Jorge Newbery in Buenos Aires, is named after him. Perceived Value |
 | Helicopter, 1965, Jun 01
Greenland, first helicopter flight, Stromford-Godthab, bs 3/6, black/white souvenir card with picture of helicopters in flight, franked 350+5o, special souvenir flight cancellation ds. Perceived Value |
 | Helicopter, 1965, Oct 21
Italy, special 'Mostra Nazionale Aerofilatelica' helicopter flight, Ancona-Loreto, bs, red/cream souvenir card with map of route verso, franked 15L, black/yellow/green Expo vignette tied by special red expo cachet. Perceived Value |
 | Helicopter, 1966, Jul 21
Poland, helicopter service special Katowice Stadium flight from Katowice to Warsaw, arrival date on front, franked Poland 2.5ZL, special flight cachet tying multicoloured 'Helicopter' vignette, on souvenir cover. Perceived Value |
 | Helicopter, 1967, Aug 13
Canadian Centennial 'Copter' Project, special cover with printed "This Mail Carried Aboard/The Canadian Centennial Copter", franked 8c canc 100 Mile House, BC cds, purple maple leaf flight cachet and verso two black hs's '100 Years/1867-1967' and 'Four Horse Stage Coach'. Perceived Value |
 | Helicopter, 1968, Apr 10
Iceland, special flight, Keflavik to Reykjavik, souvenir cover, red flight cachet. Perceived Value |
 | Helicopter, 1968, Jun 23
Poland, helicopter service special Expo flight from Katowice to Warsaw, arrival date on front, franked Poland 2.5ZL, special flight cachet tying multicoloured 'Helicopter' vignette, on souvenir cover. Perceived Value |
 | Helicopter, 1968, Jun 23
Poland, helicopter service special Expo flight from Katowice to Warsaw, arrival date on front, franked Poland 2.5ZL, special flight cachet tying multicoloured 'Helicopter' vignette, on souvenir cover. Perceived Value |
 | Helicopter, 1968, Sep 20
Austria, special helicopter flight from Llangelbarn to Weiner Naustadt, multicoloured souvenir tryptyrch card, franked 2S, black seven line, and blue 'helicopter' cachets. Perceived Value |
 | Helicopter, 1968, Nov 30
Germany DDR, special helicopter flight Grimma-Leipzig, plain cover franked 30+15, black and red flight cachets, red/cream flight vignette. Perceived Value |
| Helicopter, 1969, May 31
San Marino, special 'Riccione Scout' helicopter flight, San Marino-Riccione, special commemorative arrival ds on front, blue/white souvenir cover, franked 50L tied special Commem postmark, blue flight cachet. Perceived Value |
 | Helicopter, 1972, Oct 07
Special Hughes OH-6a helicopter flight to commemorate 2nd International Aerospace Expo, Buenos Aires, printed souvenir cover, commemorative cachets (2). Perceived Value |
 | Helicopter, 1974, Oct 20
Nyiregyhaza to Budapest, Hungary 1974 Aerophilia, souvenir cover franked specila helicopter stamp and cnacellation, also red hexagonal cachet. Perceived Value |
| Helicopter, 1975, May 31
France, souvenir maxi card franked FDI 1975 Helicoptere 'Gazelle Alouette' 1.30F. Perceived Value |
 | Helicopter, 1975, May 31
France, souvenir maxi card franked FDI 1975 Helicoptere 'Gazelle Alouette' 1.30F. Perceived Value |
 | Helicopter, 1976, Aug 22
GB acceptance for special helicopter flight from Rimini to San Marino, franked QE 8 1/2d canc Sutton Coldfield cds, Rimini and San Marino special flight 22.8.76 postmarks, violet 'helicopter' fight cach, two line "Per Volo Con Elicottero/Rimini-San Marino" cachet. Perceived Value |
 | Helicopter, 1986, Jun 23
Helicopter Club of Great Britain souvenir cover commemorating the 5th World Helicopter Championships held at Northampton, signed by John A. Isemonger, World Helicopter Champion and Jimmy A. Green, Co Pilot. 400 covers issued, 100 signed. Perceived Value |
 | Helicopter, 1990, Nov 30
Argentina, 10 anniversary of the 1st crossing of the Antarctic by helicopter, red/cream souvenir cover, franked 2500p air, canc special souvenir postmark. Perceived Value |
