TubeNet

That’s actually an old Conn. In great shape!
I’m not too familiar with the tuba model numbers from way back. It looks like it’s from the teens/twenties to me.

80j

On the one hand- 3 valve e-flat couldn’t be an all-purpose horn for me. On the other, maybe the perfect horn to add a fourth valve for my euphonium-trained other hand.

Very nice looking horn for its age.