Wanted: Colombia soundtube

[Covah]

Hello. I want to replace a scuffed-up Columbia soundtube of this type:




Note the soundtube is secured by a wire locking ring, not pictured, not by a round leaf spring held by two screws. I wish it were, those are much more common.

Thanks!

[Covah]

Incidentally I have two elbows like the one shown with a groove for a retaining wire ring. I would be happy to trade for the more common twist-in type that takes the leaf spring.