I know that NKP 765's original whistle broke not long after its restoration in 1979. Does anyone know what kind of whistle it was? I watched the dvd Extra 765 West which is from 1980, before the whistle was replaced. In the dvd, the narrator had said that the whistle was a Nathan 5 Chime. But, I've also heard that it was a NKP 5 Chime or a Lima 5 Chime. Also, this whistle sounds really similar to PM 1225's whistle. So does anyone know for sure what is was?
Sound clip from dvd