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Aviation History
1923
1923 - 0678.PDF
By DOUGLAS B. ARMSTRONG U.S. Night Flights As much as $5 and $10 apiece is already being asked in America for " flown " covers carried on the Government ex- perimental night mail flights from New York to San Francisco on August 21, 22, 1923. Postal 'planes left both cities on the night of the 21st, and letters posted in New York at 9 a.m. on that date were received in San Francisco at 6 30 p.m. on the 22nd. No distinguishing mark was applied to air mail letters originating in New York, so that the timed postmarks are the only guide. At the San Francisco end, however, some letters were impressed with the seal of the U.S. Air Mail Service, as shown on the latest 16 cents air stamp, whilst at Cheyenne, Wyoming, the words " Night and Day Air Mail " were stamped in addition to the insignia. Esthonian Air Stamps THE inauguration of a regular air post service between Tallinn, Riga, and Konigsberg on October 2 has led to the resuscitation of the old triangular 5 marka Esthonian air stamp, originally issued in 1920, for use in the short-lived service between Reval and Helsingfors, during the ice-bound season. The re-issue is overprinted in red with the date " 1923," and, in addition, four new values have been extem- porised by surcharging the same stamp, viz. : 10 marka in black on pair of 5 marka ; 15 marka in red on 5 marka ; 20 marka in red on pair of 5 marka ; 45 marka in red on pair of 5 marka. In some cases new printings appear to have been made, as the shades show considerable variation. The 5 and 10 marka stamps are for inland use, and the higher values for international postage. Of the 45 marka value less than 10,000 copies are said to have been printed. Russian Air Posts THE Russian 45 roubles stamp overprinted with a red aeroplane in outline, and used for a time in the Moscow- Berlin service, is proving an elusive item, and on " flown " cover is undoubtedly worth more than its present market quotation. One of the scarcest of European air stamps is, of course, that surcharged on Russian fiscal stamps, and used provision- ally upon official correspondence despatched from the Russian Mission in Berlin via Konigsberg and Smolensk in July, 1922, before the opening of the regular Berlin-Moscow air line. There are four values in the series uniformly overprinted in Russian characters reading " Air Post R.S.F.S.R.," and surcharged with the following values in German marks : 12 mk. on 2.25 rbls., rose and purple on green ; 24 mk. on 3 rbls., green and red on pink ; 120 mk. on 2.25 rbls., rose and purple on green ; 600 mk. on 3 rbls., green and red on pink ; 1,200 mk. on 10 rbls., rose and violet on green. Only 50 copies of the 1,200 mk are believed to exist, and the other denominations are almost equally scarce. A fortnightly air post is in operation between Tiflis (Georgia) and Moscow, but no distinctive stamps are employed at present, air postage being prepaid in the current stamps of the Republic, bearing high values in surcharge. "Air Post Bulletin " THE first number is before us of a monthly journal devoted entirely to aero-philately. Its title i« the Air Post Bulletin, and it is a " house organ " published by Mr. Alan Turton, the air post specialist. The principal article in the October issue is an interesting account of the trans-Atlantic flights of 1919, over the signature of H. C. Harford, in the course of which he describes a very clumsy attempt to counterfeit •'; the rare " Hawker " stamps. " Some Notes of the Month " and a useful priced catalogue of air post stamps and covers com- pletes a commendable No. 1, Vol. I. -.. x .,. _. NOVEMBER 1, 1923 PUBLICATIONS RECEIVED The Original Book of the Ford. 8th Edition. By R. T. Nicholson. London : Temple Press, Ltd. Price 2s. 6d. net. The Causes of Rapid Corrosion of Condenser Tubes. By G. D. Bengough, R. May and R. Pirret. North-East Coast Institution of Engineers and Shipbuilders, Bolbec Hall, Newcastle-upon-Tyne. Goodwill in Industry. By the Rt. Hon. J. R. Clynes, M.P. The British Commercial Gas Association, 30, Grosvenor Gardens, S.W. 1. Regulations for Short Service Commissions in the Royal Air Force (General Duties Branch). Air Publication 793. London: H.M. Stationery Office, Kingsway, W.C. Price Id. net. Forecasting Weather. By Sir Napier Shaw, F.R.S., Sc.D. 2nd Edition. London : Constable and Co., Ltd. Price 36s. net. Official Gazette of the United States Patent Office, September 11, 1923. United States Patent Office, Washington, D.C., U.S.A. Vol. 314, No. 2. Annual Report of the Smithsonian Institution, 1921. The Smithsonian Institution, Washington, DC, U.S.A. Over ihe Balkans and South Russia : being the History of No. 47 Squadron, Royal Air Force. By H. A. Jones, M.C. London : Edward Arnold and Co. Price 10s. 6d. net. Report of the Oxygen Research Committee. Department of Scientific and Industrial Research. London ; H.M. Stationery Office, Kingsway, W.C. Price 8s. 6d. net. Aerial Haze and Its Effect on Photography from the Air. Monographs on the Theory of Photography from the Research Laboratory of the Eastman Kodak Company, No. 4. Kodak, Ltd., Kingsway, London, W.C. 2, The British Engineer's Home and Export Journal. Vol. V, No. 7.» October, 1923. London : Engineering Publications, Ltd., 32, Victoria Street, S.W. Price Is. Aeronautical Research Committee Reports and Memoranda '.— No. 783 (M. 8). Report on the Effects of Over-heating and Repeated Melting on Aluminium. By Dr. W. Rosenhain and J. D. Grogan. May, 1922. Price &%d, post free. No. 820 (Ae. 70). Stresses in a Stiff Jointed Polygonal Frame under a System of Parallel Loads. By A. J. Sutton Pippard. August, 1922. Price tyd., post free. (H.M. Stationery Office.) Catalogues Lighting Service.—Factory lighting designs. The British Thomson-Houston Co., Ltd., 15, Savoy Street, London, W.C. 2. Welconstruct Slotted Steel. Constructors, Ltd., 4, Brook Street, St. Paul's, Birmingham. AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : cyl. «• cylinder ; I.C. = internal combustion j m. •= mote* The numbers in brackets are those under which the Specifications will be printed and abridged, etc. APPLIED FOR IN 1922 Published November 1, 19239,488. H. A. BERLINER. Helicopters. (204,729.) 9.546. AERONAUTICAL INSTRUMENT COMPANY. Direction-finding devices.(191,695.) 9.547. AERONAUTICAL INSTRUMENT COMPANY. Direction-finding devices.(184,773.) 18,916. Soc. ANON, DES AEROPLANES G. VOISIN. Apparatus for inspection and control of sparking-plugs. (182,816.)19,768. LUFTSCHIFFBAU ZEPPELIN GES. Anchoring device for airships. (183,469.)27,888. H. J. DOLNAN. Revolving cyl. I.C. engines. (204,914.) 31,520. RAUL, MARQUIS OF PATERAS PESCARA. Double-acting motors of thetwo-stroke type. (189.145.) APPLIED FOR IN 1923 Published November 1, 1923 1,239. W. BEENEY. Divisible rim for wheels of aircraft, etc. (204,995.)1,971. Soc. RATEAU. Pressure-feed compressors of pressure-fed aircraft engines. (193,016.) FLIGHT -•••' " '•."• The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address : Truditur, Westcent, London. Telephone: Gerrard 1828. 7 _ •;„_-- ...-.".". SUBSCRIPTION RATES " FLIGHT " will be forwarded, post free, at the following rates :— Readers are invited to forward to the Editor of FLIGHT letters, etc., bearing aerial stamps or postmarks for mention in this column, as well as oui-of-ihe-way varieties, etc. We shall also be pleased to hear from correspondents interested in air-stamp collecting, and to answer any queries. ABROAD* ,-• d. 5. d. 7 3 Months, Post Free 8 3 26,,. „ 16 6 4 12 „ „ 33 0 These rates are subject to any alteration found necessary under abnormal conditions and to increases in postage rates. European subscriptions must be remitted in British currency UNITED KINGDOM s. 3 Months, Post Free.. 7 6 „ ..15 12 „ „ ..30 678
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