Published here:

The Bell-tuning Trumpet

The JTL Pocket (Parlour) Cornet

The T7 Trumpet: the seventh ever innovation in trumpet architecture

The Two Bristol Trumpets 1700-1720 by John Harris

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THE BELL-TUNING TRUMPET: This seminal research paper compared the tuning profiles of fixed-bell and tuning-bell trumpets. It was published in 1979 in Brass Bulletin, a Swiss trilingual global quarterly published by Jean-Pierre Mathez. The paper remains unchallenged, was distributed for many years by Schilke Music, and is current on the internet.

THE JTL POCKET (PARLOUR) CORNET: The rare pocket cornet from the collection was made by Jerome Thibouville-Lamy in 1905 or 1906 and was featured in the International Trumpet Guild Journal no. 45, January 2021. See also under ‘Instruments’.

The T7 trumpet by T-Trumpets UK.  The seventh innovation ever in trumpet architecture, combining the best of rotary and piston trumpets in a universal instrument.

THE TWO BRISTOL TRUMPETS 1700-1720 by John Harris, an historically important pair of civic trumpets, are researched and reported in detail in this paper.