A Pre-War Martin O-18K
1934 Martin O-18K (12 fret to body)
This great sounding Martin acoustic guitar from 'The Golden Era' weighs just 3.30 lbs. and has a 13 1/2 inch wide and 4 1/8 inch deep Hawaiian Koa body. 'Cross-braced' top with a multi-bound 3 9/16 inch diameter sound-hole. Two-piece back with a black backstripe. The top of the body has five-ply 'fiberloid' binding and the bottom single-ply binding. One-piece mahogany neck a nut width of just under 1 13/16 inches and a scale length of 24.90 inches. The soft 'V' neck profile measures 0.91 inches at the first fret and 1.07 inches at the ninth fret. Slotted headstock with "Martin & Co. / Est. 1833" silkscreened on face and the original Grover three-a-side open-back nickel strip tuners with rear-facing flower-shaped metal buttons. Ebony fretboard with 20 thin frets and neck joint at twelfth fret. Straight bone saddle on rectangular ebony 'belly' base with six black bridge-pins. The body is stamped ""C.F. Martin & Co / Nazareth-PA". on the inside center strip and the neck block is stamped "O-18K / 58154".

This wonderful sounding guitar was the unfortunate recipient of a terrible accident… A cabinet door 'fell' onto the guitar resulting in a serious break on the top… We have had our luthier restore the top and the guitar has now been restored to at least part of its former glory. The work that was carried out was as follows: "Repair crushed top and side and four braces; Refinish top and sides; Fret level and dress". An opportunity for a player to own a lovely pre-war Martin that plays and sounds just as it should - and at a reasonable price.

"A Martin with the 'K' designation after the model name… was made with Hawaiian koa wood, which gave it an extra element of beauty as well as a unique voice." (Walter Carter. The Martin Book, p. 31). (#1689)

Product Specs

Excellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.learn more
Brand Martin
Model O-18K (12 fret to body)
Finish Koa
Categories Parlor
Year 1934
Made In United States
Top Material Koa
Right / Left Handed Right Handed
Number of Strings 6 String
Neck Material Mahogany
Body Shape Concert
Finish Style Gloss
Back Material Koa
Sides Material Koa
Fretboard Material Ebony

Fast response, as described. Excellent.

Scott M. - December 11, 2019

Hands-down the most absolute exquisite packing job I have ever seen in my life this beautiful baby could not have possibly even moved a millimeter and guitar was even better than described absolutely flawless I will put on some white gloves i
And a surgical smock and go into a clean room to play this baby ,it's so awesome.. I highly recommend the seller, you can rest assure your guitar will arrive with the maximum amount of protection way beyond my expectations, I love it.

Raymond R. - December 05, 2019

The amplifier was as described. 60 years old and unmolested. It was carefully packed and seller complied with my shipping request.
I paid a bit more as it’s condition led me to believe it may warrant the premium.
I was right.
It sounds glorious! Especially through one of the two bass inputs, particularly with dynasonic pickups.
I’m Leary of taking it to a tech as I really don’t want to lose any of its charm, but reluctantly I will. Eventually. After exploring its charms.
Great transaction

John W. - July 24, 2019


Christopher G. - June 22, 2019

got it thanks.

Hiroaki W. - May 23, 2019

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Shipping Policy

Available for local pickup from Calabasas, CA, United States

Ships from Calabasas, CA, United States to:

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Return Policy

Return Window

This product can be returned within 2 days of receipt.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.


Buyer receives a full refund in their original payment method less any shipping costs and a 5% restocking fee.

Special Conditions

We wish to establish an ongoing relationship with you based upon your trust in our knowledge and judgment. To that end: We meticulously inspect in detail every guitar that we offer. We check the finish, all of the electrical components, serial numbers, etc. With over thirty years of experience collecting and handling vintage guitars and our enormous reference library, we bring to bear all that is known about guitar manufacturers, models, and annual production. We provide full, detailed descriptions and specs to each guitar. We openly disclose any and all flaws we discover, in writing. If the instrument is not completely “straight,” we will tell you so and why. We endeavor to conduct ourselves to the highest standard of professional behavior. We will deal fairly and ethically; no surprises, flim-flam, dubious business practices or shenanigans. We value your sense of privacy and uphold the highest standards of discretion and respect. We allow a full 48 hour honeymoon period when you buy a guitar from us. Please inspect your new guitar immediately upon receiving it. If you are not 100% satisfied with it we will refund the purchase price in full (less a re-stocking fee of 5%, shipping costs, credit card, Paypal or wire transfer fees) upon return of the guitar, if when it is returned to us it is in exactly the same condition as when sold. Please call us before returning the instrument. Amplifiers are not returnable. All errors and omissions excepted.

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Fretted Americana, Inc

Calabasas, CA, United States
Joined: Feb 2016

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As low as $348/month

Martin O-18K (12 fret to body) 1934 Koa
+ $150 Shipping