Acme Whistles TH147NP Siren Whistle

The Acme Whistles TH147NP Siren Whistle is sometimes referred to as the cyclist's road clearer. This unmistakable whistle sound—from a design introduced in 1895 and patented in the same year—still finds numerous uses. From tribal dances to marine signaling, this complex whistle is made with a watchmaker's precision.

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