It has had a bridge doctor installed never had any issues this was installed as a precautionary measure as over time 12 strings do tend to belly up a bit so by having this device fitted is definitely not a bad thing. 1997 USA Martin D12-1, Twelve String Acoustic Guitar Solid Spruce/Mahogany with Cator case. Body Style: 14-Fret Dreadnought Series: 1 Series. Back Inlay Strip: Black Fiber (Style 18). Neck Width at Nut: 1-7/8.Collection only preferred E112dz or nw18ph. I can deliver within a certain distance. The item "C F Martin Made In The. U S A D12 12 String Acoustic" is in sale since Sunday, May 23, 2021. This item is in the category "Musical Instruments\Guitars & Basses\Electro-Acoustic Guitars". The seller is "saggese123" and is located in London. This item can't be shipped, the buyer must pick up the item.