Double horn

This instrument was damaged during a bomb attack by the Provisional Irish Republican Army (IRA) on the Royal Marines Depot, Deal, that took place on 22 September, 1989. The bomb had been placed on the East barracks building, which housed the Royal Marines School of Music since 1930. It is a double horn made entirely of silver plated brass, with a circular body arrangement and wide flared bell. It has four rotary valves with mechanical linkage and cork bumpers. The fourth valve, operated by the thumb key, is used to select one of the two independent sections of tubing of different lengths that each valve has, therefore changing the pitch of the instrument and allowing a combination between the two. There is one water-key on the leadpipe, and two pulling rings on the second valve tuning slides. Nominal pitch: F and B-flat.