Rockabilly guitarist Brian Setzer, formerly of the Stray Cats, had asked makers Gretsch to brace his Gretsch signature series 6120 guitar the original way.
The Gretsch model 6120 was made with unique bracing from 1959-1961 but was discontinued for no apparent reason.
Gretsch put a 1961 guitar through a CAT scan machine in Scottsdale, Arizona, rather than taking the guitar apart to study how it was built.
