The post horn is a valveless cylindrical brass instrument with a cupped mouthpiece. The instrument was used to signal the arrival or departure of a post rider or mail coach. It was used by postilions of the 18th and 19th centuries.

Post horn, brass musical instrument of cylindrical bore, used by guards of mail coaches in the 18th and early 19th centuries. At the end of the 18th century, post horns were crescent-shaped, coiled, or straight. The notes they sounded were at most six (harmonics 2 to 7).

邮号 是一种无按键的自然 铜管乐器。 通常卷成圆形，称为 邮递圆号 （英語： post horn）；亦有类似 军号 的形状，称为 邮递小号 （英語： post trumpet）。 [1] 19世纪至20世纪的 邮递员 和 邮政马车 在离开或到达时常会吹响邮号。 另外在道路上由于邮政马车时刻表紧凑且速度较快，在大多数国家有优先通行权，故道路上的行人和车辆在听到邮号后须即刻让路，避免发生意外或阻碍通行。 短号 即是在邮号形式下添加按键发展而来 [2]。 莫扎特 、 马勒 均在其音乐作品中使用邮 …

The meaning of POST HORN is a simple straight or coiled brass or copper small wind instrument with cupped mouthpiece used especially by guards of mail coaches of the 18th and 19th centuries.

“ The post horn (also known as a postillion cornet) is a wind instrument…it was mainly used by postal couriers and stagecoaches, to signal their arrival and departure, or by postillions, especially during the eighteenth and nineteenth centuries [but also earlier].

Das Posthorn ist ein hornförmiges kreisrund gebogenes, hohes Blechblasinstrument aus Messing mit hellem, durchdringenden Klang zur Erzeugung von akustischen Signalen. Als Naturhorn können mit ihm nur die Töne der Naturtonreihe erzeugt werden. Lange bevor es eine organisierte Post gab, nutzte man im frühen Mittelalter das Horn als Signalinstrument.

By the late 18th century, the German Post horn was standardized in this shape and pitched somewhere near modern Bb. The calls required just two or three tones but the desire to become more musical resulted in a longer tube pitched in F or Eb, often with a transposing finger hole.

The post horn is an end-blown lip-reed aerophone of the natural type, meaning it is restricted to sounding only a single fundamental and the notes in the harmonic series above it. Originating in Europe, the post horn was historically associated with the service of mail delivery.

The post horn, a brass wind instrument with a rich history, serves as a symbol of communication and musical expression that has evolved through the centuries. Originally used by post riders to announce their arrival and to signal important messages, the post horn transcended its practical purpose to become a cherished item in the realms of ...

This shows five brass players of the first band of Battle Creek, Michigan, about 1848. It consists of one each: alto and tenor Saxhorns, Sax style Bb cornet, Eb keyed bugle and Bb post horn. There are only eight post horns in Bb, C and Eb by Graves known to have survived along with nine by other US makers.