Acme large brass thunderer whistle - Nickel plated-(EHH-PP174) offers a thoughtfully designed, durable resource for hands-on learning. Introducing the Acme large brass thunderer whistle - nickel plated The Acme large thunderer whistle produces a large deep tone and a far carrying sound for use in all environments. It is a reliable choice for referees and lifeguards, or even government officials and private security workers. The thunderer whistle produces a reliably consistent tone, and as a pea whistle it allows users to make an interesting variety of sounds by adjusting the airflow to produce a rolling trill with a range of effects. Hand made in the UK To this day Acme police whistles are manufactured in Birmingham using the original techniques and machinery from the 1800s. Outstanding craftsmanship and strict quality testing ensure every whistle is of the highest standard. 174 | PP174 | pp174 | 58.5.