The PP164 Acme orchestral siren can be used in all sorts of events from tribal dances to marine signalling.

Sometimes known as the cyclist's road clearer, this unmistakable sound, introduced in 1895 and patented in the same year, still finds numerous uses.

This complex whistle, made with watchmaker's precision, was the beginning of the Acme range of orchestral whistles and musical sound effects that remain popular to this day.

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