Any Antique Double Bass Experts? Antiquetiger?

Personally, I would make the trip to Lafayette and go see Anya or Chris at SOLA Violins located on Jefferson St.
Let them go over and inspect it in person, be sure to bring the bow.
Incredible wealth of knowledge as they build, repair, and have spent their entire lives with violins.
Chris is a solid dude as I've done business with him in the past and bought a pair of Martin Logan speakers from him.
When done, walk 2 blocks down the street and have a Po-boy at Pop's.

the OT never disappoints