![This is a Martin OM-28JM. It is John Mayer's signature guitar. I have an OMJM which is a stock model of this guitar, but the OM-28JM is the OMJM on ste… This is a Martin OM-28JM. It is John Mayer's signature guitar. I have an OMJM which is a stock model of this guitar, but the OM-28JM is the OMJM on ste…](https://i.pinimg.com/originals/16/80/b4/1680b416b25e52628b499660009ab732.jpg)
This is a Martin OM-28JM. It is John Mayer's signature guitar. I have an OMJM which is a stock model of this guitar, but the OM-28JM is the OMJM on ste…
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Martin Special Edition OMJM John Mayer Signature Orchestra Model Acoustic-Electric Guitar Natural | Guitar Center
![Martin Custom Shop OM Size 28 Style with Engelmann Spruce Top, Abalone Rosette and Fishman Pickup - Maury's Music Martin Custom Shop OM Size 28 Style with Engelmann Spruce Top, Abalone Rosette and Fishman Pickup - Maury's Music](https://i.b5z.net/i/u/1530927/i/OMJM-John-Mayer_x.jpg)
Martin Custom Shop OM Size 28 Style with Engelmann Spruce Top, Abalone Rosette and Fishman Pickup - Maury's Music
![Used Martin OM-28JM LTD John Mayer Signature Acoustic Guitar Natural The Music Zoo | mulherdefinancas.com Used Martin OM-28JM LTD John Mayer Signature Acoustic Guitar Natural The Music Zoo | mulherdefinancas.com](https://thumbs.worthpoint.com/zoom/images1/1/0716/01/martin-om-28-john-mayer-signature_1_63de9e12910f810e124fd5d8dd315269.jpg)