This Acme Metropolitan Police Whistle is a fascinating piece of memorabilia that offers a glimpse into the history of British policing. It is a classic example of a prison issue whistle, similar to those used by law enforcement officers to signal for help or to alert citizens of a emergency. The whistle is beautifully crafted, with a sleek design that is both elegant and functional. Its rich history and association with the police make it a must-have for collectors and enthusiasts of police memorabilia. Whether you are a fan of British policing or simply appreciate the artistry of vintage whistles, this piece is sure to impress.