Solid Brass, small size discordant note, high pitch.
 
Mini official police whistle developed by ACME Whistles in 1883 for Scotland Yard and Metropolitan Police. This whistle was used extensively within the armed forces throughout World War I and World War II. This high decibel whistle can be heard up to one mile away.
 
Silver Plated, Gold Plated and Rose Gold finishes come packaged in a Blue Presentation Box.