Topic: Josh White-My guitar is a 1000 years old

I was watching Josh White Jr.'s video on how to play his father's music on Homespun video and he opened with a song that he said was his dad's signature song.  From the chorus I believe that it is called "My guitar is 1000 years old". I have looked and searched everywhere but I can not find anything on this song.  Nothing on albums or online search.  Has anyone ever heard of this song or similar if I might have the title wrong?

1991 Washburn D12CE/N
2006 Taylor 412ce

"What I want is songs that echo. The stuff we're doing now is like somebody's bedsheets; spread 'em out, soil 'em, ship 'em out to laundry, you know? But our songs...I want us to be able to fold ourselves up in them forever...understand?  Words and music."