The Antique J Hudson & Co “The Metropolitan” Patent Whistle from 13 Barr St Birmingham is a sought-after collectable item in the world of police memorabilia. Made in the United Kingdom, this whistle holds historical significance and is a rare piece of British police memorabilia. With its classic design and unique theme, it serves as a nostalgic reminder of the past and is a valuable addition to any collection of police memorabilia. This example has a bespoke hand drafted leather case.