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Aviation History
1924
1924 - 0126.PDF
M* FEBRUARY 28, 1924 AIR POST STAMPS By DOUGLAS B. ARMSTRONG Air Post on the River Plate A NEW, and this time definitive, set of air post stamps was brought into use in Uruguay on January 1, 1924, coincident with the establishment of a regular air post service between Montevideo and Buenos Ayres by means of hydroplanes, operated by the River Plate Aviation Co. Early examples of these air post stamps have been shown us by Mr. Alan Turton. Lithographed in large square format at the Im- prensa Nacional, the main feature of the design is a white aeroplane displayed upon a ground of solid colour within an uncoloured rectangular frame. The inscription, also in white lettering, reads," Correo Aereo — (value) R.O. del Uruguay " round the four sides of the stamp. There are three denomina tions, viz., 6 centimos blue, 10 c. red and 20 c. green, which are used in addition to ordinary postage stamps to defray the special air post fees according to weight. No special air stamps are as yet in use by the Argentine postal authorities in connection with this service, although such an issue is by no means improbable. At present letters sent by air from Buenos Ayres to Montevideo are merely impressed with a large rectangular cachet, in black, reading " Servicio Postal—Aereo—Buenos Aires—Montevideo," in three lines. Lithuania's New Air Stamps A FIFTH series of aero stamps has just made its appearance in Lithuania, presumably in anticipation of early resumption of the North European air mail system which has been sus pended during the winter months. The latest issue consists of four values, three of them in an impressionist design repre senting two pigeons with letters held in their beaks, and a tiny vignette of an aeroplane flying in the dawn. These are 20 cents yellow, 40 c. pale green and 60 c. rose. The fourth stamp, value 1 Litas chocolate, shows an aeroplane, the star and cap of Liberty, and the winged word " ORO." All are oblong in shape, printed by lithography upon paper water marked with a honeycomb pattern an perforated 11. Germany THE new German air post stamps foreshadowed in our last notes are now to hand. A rare error of colour in the 1 mark value of the former series has been brought to our notice by Mr. R. E. R. Dalwick, the specimen in question being printed in orange instead of the normal green. Air Stamps from Lebanon THE set of French postage stamps overprinted " Poste Par Avion—Syrie Grand Liban," and recently noted in this column, has had a short life, having been superseded on January 1, 1924, by a similar issue overprinted " GRAND LIBAN " only (without the prefix " Syrie "). We understand that not more than 3,000 copies of the former were printed. Hungary IN May next a series of air post stamps of artistic aspect is announced to make its appearance in place of the postage types overprinted " Legi Posta," which have hitherto been employed in franking air post letters. The first Hungarian air stamps were issued on July 4, 1918, for use over a military air line between Vienna and Budapest, and were overprinted " Repulo Posta." After they had been in circulation for 19 days only the service was suspended owing to a series of mishaps. The present issue was introduced on November 8, 1920, in connection with a service linking the capital with other important Hungarian towns. Esthonian Air Stamps THE provisional surcharges upon the old original 5 marka air stamp which came into use in October last, have now given place to a permanent set of five denominations, litho graphed in a triangular design reminiscent of that adopted in 1920, but with a modern passenger plane substituted for the old type of biplane in the central vignette. The inscription reads, as before, " EESTI OHU POST," and the values and colours of the five stamps are : 5 Marka, ochre and black; 10 Marka, blue and black; 15 Marka, red and black; 20 Marka, green and black ; and 45 Marka, lilac and black. We have seen the new stamps obliterated with the Tallin post mark, dated 14.2.24. Readers are inited to forward to the Editor of FLIGHT letters, etc., bearing aerial stamps or postmarks for mention in this column, as well as out-of-the-way varieties, etc. We shall also be pleased to hear from correspondents interested in air-stamp collecting, and to answer any queries. All About the " Bristol Lucifer " AN extremely comprehensive booklet on the 100 h.p. " Bristol Lucifer " aero engine has just -been produced by the Bristol Aeroplane Co., Ltd., of Filton. This booklet contains much interesting information—with illustrations— not only on the merits and achievements of the " Lucifer," but also on the constructional details and various noteworthy features of this successful power unit. The " Bristol Lucifer," which, as no doubt most of our readers know, is a three-cylinder radial air-cooled engine, has shown up remark ably well in aerial racing events, but it is primarily as a medium-powered engine of unequalled reliability, calling for little trouble and expense in upkeep, and having an exceptionally long and serviceable Vde, that the " Bristol Lucifer" stands out foremost. The Bristol Co. will be pleased to send copies of this booklet to anyone interested. PUBLICATIONS RECEIVED Business Value of Publicity Clubs.—The Publicity Club of London, Hotel Cecil, London, W.C. 2. Proof. No. 10. February, 1924.—Dobson Molle and Co., Ltd., St. Clair Works, Edinburgh. Aeronautical Research Committee, Reports and Memoranda. No. 810 (M.NA).—The Accuracy of Sextant Observations Taken from Aircraft. By B. M. Jones, M.A., A.F.C. May, 1922. Price Is. net. No. 829 (Ae. 80) —Experiments with a Family of Airscrews : Part I. Experiments with Airscrews Mounted in Front of a Small Body. By A. Fage, C. N. H. Lock, R. G. Howard and H. Bateman. November, 1922. London : H.M. Stationery Office, Kingsway, W.C.2. Price 3s. 6d. net. AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : cyl. = cylinder; IX. = internal combustion j m. •» motor The numbers in brackets are those under which the Specifications will be printed and abridged, etc. Applied for in W22. Published February, 28, 1924. 29,609. Soc. ANON, DES ATELIERS D'AVIATION L. BREGUET. Aeroplane construction. (188,650.) 34,567. ARMSTRONG SIDDELEY MOTORS, LTD., and J. LLOYD, Girders of box-like section for aircraft. (210,391,) Applied for in 1923. Published February 28, 1924. 3,717. G. GARIBALDI. Screw propellers. (210,630.) I If you require anything pertaining to aviation, study "FLIGHT'S" Buyers' Guide and Trade Directory, which appears in our advertisement pages each week (see page xiv). NOTICE TO ADVERTISERS All Advertisement Copy and Blocks must be delivered at the Offices of "FLIGHT," 36, Great Queen Street, Kingsway. W.C. 2, not later than 12 o'clock on Saturday in each week for the following week's issue. FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address : Truditur, Westcent, London. Telephone : Gerrard 1828. SUBSCRIPTION RATES " FLIGHT " will be forwarded, post free, at the following rates : UNITED KINGDOM 5. d. 3 Months, Post Free .. 7 7 6 „ ..15 2 12 „ „ ..30 4 ABROAD* 5. d. 3 Months, Post Free.. 8 3 6 „ „ ..16 6 12 „ „ ..33 0 These rates are subject to any alteration found necessary under abnormal conditions and to increases in postage rates. • Foreign subscriptions must be remitted in British currency Cheques and Post Office Orders should be made payable to the Proprietors of " FLIGHT," 36, Great Queen Street, Kingsway, W.C. 2, and crossed London County and Westminster Bank, otherwise no responsibility will be accepted. Should any difficulty be experienced in procuring " FLIGHT " from local newsvendors, intending readers can obtain each issue direct from the Publishing Office, by forwarding remittance as above. 126
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