A friend recently sent me an old British auction notice and one of the lots was listed as being a 5" 3 chime Lunkenheimer whistle off of a West Side Lbr. Co. Shay.
I do not remember ever seeing this type of whistle of the West Side at all. The 10 spot had a 6" Lunkenheimer Plain and I believe that the others had either cast 5 or 6 chimes. Even Pickering did not have a whistle of this type, although their Shay 11 carried a 6" bald top Powell in her last years.
Any ideas or corrections appreciated.