I've often read that the original Burns Marvin guitars frequently developed a small crack in the finish by the neck pocket. Never actually seen one myself though, until I watched Hank on Youtube. Pause the video at the 14 second mark and you can plainly see a crack in the finish of his guitar by the neck pocket. So even his guitars suffered from the issue .
Also worth noting that Hank appears to miss his cue, as the intro to Move It starts before he's playing!
Cliff