This is perhaps the guitar that John is most often associated with, at least during the Continuum era. It was built by Fender Custom Shop
Lorenzi John Mayer Black One Tribute
Guitars - John Mayer Gear - The gear behind his signature tone
John Mayer BLACK1 momoseストラトキャスターエレキギター - WRGMED
Martin John Mayer OMJM Acoustic-Electic Guitar (with Case)
John Mayer must regret leaving Fender
John Mayer BLACK1 momoseストラトキャスターエレキギター - WRGMED
Guitars - John Mayer Gear - The gear behind his signature tone
Classic interview: John Mayer – It has never changed that joy and
Which Strat Will Take You to the Stratosphere? - Paul Reno