I am the "TB Guy" (that just doesn't sound right...) that took the pictures of the walnut bass.
Without a doubt, this bass was a short scale instrument. I know, I was there.
It was small in size. The bass (& a lap steel from the same period) were in the shop for one day. It was my job to authenticate it. Time was limited; I took it apart, pictures were taken, then it was reassembled. I did get to plug it into an amp and play on it (there was no male plug on the end of the cable so I used alligator clips to attach it to a cable so I could plug it in); the strings were beyond dead, but it did work.
My notes state that the scale was approx. 30" . The scale was just shy of that; my guess is 29 7/8".
Moonshine