Seeking a Vance Terry tape from 1956-57

[Charles Mohnike]

I recently interviewed western-swing guitarist Charlie Robinson, who's now 90, and learned that Vance Terry played in Moriss Taylor's band with him in Chico, CA around 1956-1958.

More on that (with audio) in this post: https://bb.steelguitarforum.com/viewtopic.php?t=394315

I'm looking for a tape of Vance that probably includes Charlie. Some locals in Chico are planning a musical tribute to him later this year, and it would be great to include that audio.

On Brad's Page of Steel page on Vance, Mylos Sonka lists the tape as "ca.1956-7 Chico radio station jam session." I contacted Mylos and he's not sure he has a copy.

Thanks for any help you can provide.