Hello. I play a Conn 38h from 1956 for 5 years. Great instrument with mouthpiece Yamaha Nils Landgren GP. I play also an Conn 6h from 1962. I think the 38h more center and Brighter. My question is are there more people who played a 38h or had one. This trombone is only made for 2 years, while Conn said that the 38h was the topline. What do you think of this instrument?

Here is the page from the Conn Loyalist:

https://cderksen.home.xs4all.nl/Conn38H1954image.html

Not too many around.