This is the last part about James Dixon & Sons Whistles and History
in 9 parts. (See links to all 9 parts at bottom).
I started the article with Two Note Tube whistle (TNT) the one commonly identified with police whistles and invented by Porteous for Stevens & Sons,
It was only in 2006 that I discovered the first one.
There are two known examples of this whistle,
Here is a Drawing of model # 55 in Dixon’s catalogue of 1895. The whistle was made before that, and was described as a railway whistle.
Continue reading James Dixon & Sons Other Rare Whistles, Models & Designs. Part.II.c. Avner Strauss