STAMP ISSUES RELATED TO ICAO (1984-1985)
Bulgaria : 40th Anniversary of ICAO
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Issue date: 25/12/1984
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Tupolev Tu-154M of Balkan Bulgarian Airlines; ICAO emblem, with registration number: LZ-BTH. |
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Lower-left block of 4 stamps. |
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Full sheet of 20 stamps. The beginning of the translated text at the bottom margin of this sheet reads as follows: Commemorative stamp 40 years of the International civil airline organization “ИКО“; it contains two errors: 1. Although the stamp designates correctly (in Bulgarian) the International Civil Aviation Organization, the margin uses the word airline (in singular form) instead of aviation. 2. The second error comes from the Cyrillic acronym of the Organization (which should be ИКАО). The letter A is missing in the acronym. The text after that refers to the price, the printing process and the related authorization.
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Official First Day Cover.
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Maximum Card; Tupolev Tu-154-B2 of Balkan Bulgarian Airlines, registered LZ-BTS in Bulgaria (front and back).
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Maximum Card with ICAO cancel, showing the Ilyushin IL-18V (registered YR-IMA) of TAROM. The stamp was released on 18 August 1962 to commemorate the 15th anniversary of the airline TABSO (Transportno-aviacionno balgaro-savetsko obedinenie). The IL-18V turboprop airliner entered service in 1961.
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Circulated registered cover (recto and verso) with first day cancel and date cancel (25.12.84), on official stationery of the Bulgarian Post Office with the post office emblem (post horn; see below) on the verso. Receiving date stamp on the verso (26.XII.84).
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History of the POST HORN
The post horn is a valveless cylindrical brass instrument with a cupped mouthpiece. Usually, the instrument has a circular shape or is rolled up with three turns of the tube, although sometimes it can also be straight. From the earliest days of the mounted post rider, the instrument was used by postal couriers and stagecoaches to signal their arrival and departure, before other types of signalling communications (like radio or telegraph). It was also used to act as a warning for other coaches on the road to clear the way and give them priority or have a fresh horse ready, as mail coaches travelled at high speeds. Hence, post horns are frequently used as iconography to represent postal services.
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