I don't want to burden you with more work. Clearly, you have spent quite a bit of time analyzing the film and comparing the images with actual Bach and Holton cornets. I appreciate, as I am sure other forumites do, all you have done toward helping to solve the question of the identity of the cornet Bix plays in the Fox film.
To facilitate comparisons, would it be possible to provide relevant images for one or two examples of what you view as decisive pieces of evidence? It would be very instructive if you could provide side by side images of the Fox cornet and of a Bach and a Holton in the same positions. This way the features that help distinguishing between a Bach and a Holton by comparison with the Fox cornet could be better appreciated.
Thanks very much.
I would be happy to upload the necessary images in any posting you wish to make. If you decide to send images, jpgs would be perfect to include in the body of the message.