Hi Eric,
Got the dimensions you posted, but no e-mails. I was away on Spring break and had auto answer on. I tried e-mailing you at the address I had from two years ago, but haven't heard back.
Do you know the vintage of the whistle? According to Fagan's book, Crosby actually built many of the Star whistles. The dimensions you listed are within 1/4 inch of my pre 1900 Crosby, but I don't have a later model. Can you send me some photos?
Regards,
Michael Allen
trainrider47@aol.com