Vintage Acme Thunderer “BRUNO” pea whistle, Made in England, dating to approximately the late 1920s–1930s.

This is a genuine British-made Acme Thunderer whistle with dual markings:

• “BRUNO – Made in England” stamped on the round end cap

• “The Acme Thunderer – Made in England” stamped on the body

Nickel-plated brass construction with original internal pea (ball). Classic loud Thunderer tone. This style was commonly used for referee, police, and sporting applications during the interwar period.

Details:

• Manufacturer: Acme Whistles (J. Hudson & Co.)

• Model: Thunderer

• Variant: Rare BRUNO trade-name stamping