Bull Mouthpieces This mouthpiece series is based on an original by William Bull, located in the London Museum. Eric Halfpenny had the mouthpiece measured and published these results, (upon which our model is based) in “The Galpin Society Journal XX”. The following models were created in close cooperation with Jean-François Madeuf. Their bright, brilliant sound production and flexibility are particularly suited to the playing of (holeless) long, natural trumpets. Despite having a broad cup diameter, they are designed for use in the upper register. All mouthpieces are silver plated. Call for unplated or gold plating. Mouthpiece Dimensions BL-1
Egger Bull Series Baroque Trumpet Mouthpiece – The Baroque Trumpet Shop
Adolf Egger Historical Brass Instruments
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Egger SI Series Baroque Trumpet Mouthpiece – The Baroque Trumpet Shop
Interview with Julian Zimmermann, natural baroque trumpet soloist – Trumpet Journey
Trumpet – EGGER
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What size trumpet mouthpiece should I use as a trumpet and french horn player? - Quora
Natural trumpets – EGGER