Martin 1932 OM-18 Shade Top, Mahogany & Adirondack Spruce - Pre-Owned


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Martin first launched their OM in 1929, in response to requests from banjo players like Perry Bechtel for a powerful guitar that they could play in dance band settings. It was the first 14-fret steel-string flattop with a longer scale length, a major innovation away from the short scale 12-fret 000s and smaller guitars, and one that would quickly lead to the dreadnought and other louder 14-fret acoustic guitar designs. Made at the peak of the model's initial run, this 1932 OM-18 Shade Top is a testament to the wonder of this design, and one that will make you a believer in the magic of vintage guitars (if you weren't already, that is!). As you'll note from the assorted battle scars, it may not be a closet queen. But it certainly has that well-earned tone that makes vintage mahogany guitars so sought after, being equal parts dry and warm, punchy and woody.

In our assessment, we have noted that there was a crack on the bass side back, and though it's slightly uneven, the repair work is solid and stable. It has the original bridge plate, though it has been patched. The bridge is a possible replacement. The tuners are non-original, updated Waverly tuners. Overall condition is sound and in no need of serious repair, and the frets show only a light amount of wear.

  • Top: Adirondack spruce
  • Back and sides: Mahogany
  • Neck: Mahogany
  • Fretboard: Ebony
  • Nut material: Ebony
  • Saddle: Nut, cut-through
  • Bridge: Ebony (possible replacement)
  • Tuners: Non-original Waverly
  • Scale length: 25-1/4"
  • Nut width: 1-3/4"
  • String spacing: 2-3/8"
  • Serial number: 52519
  • Case: Vintage hardshell


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This product listing was written by Kim. If you’d like to talk to Kim about this guitar, you can do so here:

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