Made for the General Post Office, this tube whistle dates between 1888-1899. Stamped 'The Metropolitan Patent J Hudson & Co. 13 Barr Street Birmingham G.P.O'. It's still in good working order and comes with the double jack chain shown in images. Hudson's still manufacturer whistles in Birmingham, trading under Acme Whistles! P&P is included in the price.
Dimensions Approx: 8cm Length x 1.5cm Diameter, Chain is 35cm (Doubled up) in Length as shown in image.
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