Steve,
I think your whistle concert made it into the Lionel N&W A that came out last year. It had a knock your socks off hooter whistle that just blew away the MTH version of the same engine that came out at the same time. If you ever run across anyone with the Lionel A, see if you can get them to run it for you and blow the whistle. It's great. Thanks for your interesting post.