J. HUDSON & CO. Manufactured by J. Hudson & Co. Period photos show these hanging from the 1941 pattern Mae West or aircrew blouse but these whistles were made from the early 1900s onwards.
Antique J Hudson & Co “The Metropolitan” Patent Whistle – 13 Barr St Birmingham
Antique Rare 1886 J Hudson & Co The Metropolitan Police Whistle 131 Barr Street
ANTIQUE THE METROPOLITAN PATENT POLICE WHISTLE J. HUDSON & CO BIRMINGHAM
Vintage 'The Metropolitan' Patent Police Whistle J Hudson & Co
Vintage Metal The Metropolitan Whistle By J Hudson & Co.