1931 Martin OM-28 Natural > Guitars Acoustic | Best Guitars
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1932 Martin OM-28 Natural > Guitars Acoustic | AJ's Music and Vintage Guitars
USED Martin OM-28 Custom 1979 w/ OHSC and LR Baggs Pickup System - Vintage Acoustic Electric Guitar, Made in USA, Sitka Spruce Top, Rosewood Back and Sides - Matt's Music Center
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Martin OM-28 1931 | Gruhn Guitars
Martin Vintage Series OM-28V 1996 - 2013 | Reverb
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Martin OM-28E Modern Deluxe Acoustic Guitar
Martin OM-28 1931 | Gruhn Guitars
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Martin OM-28 Modern Deluxe Acoustic Guitar | Martin Guitar
1998 Martin OM-28VR, Vintage Series, Sitka Spruce, East Indian Rosewoo – Acoustic Music Works LLC
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Martin OM-28 1931 "pre-war" - holy grail of flattop guitars - check video! | eBay
