Acme Thunderer Finger Whistle 477/58-Silver Plated
Hand Polished. Solid Brass. High Power 114dBA. The original big deep tone with extra strong construction and square mouthpiece. Comes with fully adjustable cushioned brass fingergrip. Extra Large Thunderer 477/58. Fitted with a patented Getagrip T.M.
Packaged in a Presentation Box.