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Martin / Custom Shop GJ42 Grand Jumbo Cocobolo Adirondack NOS / Guitar For Sale

This Custom Cocobolo Grand Jumbo acoustic guitar has a hand-selected Adirondack spruce top and cocobolo back and sides chosen by Martin's custom shop experts. The use of these tonewoods create the perfect balance and projection to come from its jumbo body. This Grand Jumbo is certainly an eye-catcher. The tonewoods look absolutely stunning! It's also been appointed with a 42 Style abalone top purfling, 45 Style snowflake fretboard inlay, Waverly tuners, and grained ivoroid bindings. It won't have any trouble producing a lot of volume, and the cocobolo back and sides add harmonic richness and a great articulation. The serial number is from 2016, that is because this is a 'new old stock'. It is perfectly clean and comes in a hardshell case with TFOA passport. Specifications Body Shape: Grand Jumbo Finish: Natural, Full Gloss Dimensions: Width: 431 mm - 16.97" Depth: 125 mm - 4.92" Body Material: Solid Cocobolo Top Material: Solid Adirondack Spruce Bracing: Forward Shifted X-Bracing Body Details: Abalone Rosette and Purfling, Tortoise Pickguard, Grained Ivoroid Binding Neck Material: Mahogany Neck Profile: CS Profile #1 Fingerboard Material: Ebony Fingerboard Radius: 16" Neck Details: Grained Ivoroid Binding, Style 45 Snowflake Inlay, Cocobolo Headstock Overlay Nutwidth: 45 mm - 1.77" Scale Length: 645 mm - 25.4" String spacing: 58 mm - 2.28" Bridge: Ebony Tuners: Waverly Gold 4065-G with Vintage Ivoroid Buttons Pickup: N/A Condition: New Old Stock Tech Notes: N/A Travels in: Martin Hardshell Case Accessories: Custom Shop Booklet, TFOA 20th Anniversary Booklet, Hangtags, Care & Feeding Guide, TFOA Passport

The Fellowship Of Acoustics, Netherlands  

Contact name:
The Fellowship of Acoustics
Martin, Gibson, Fender, Vintage Guitars, Santa Cruz, PRS, Collings, Rozawood, etc..
English, Dutch and German
Fine, Vintage and Rare Guitars
Opening hours:
Monday - Saturday: 10am - 6pm.


I have always been opposed to being trapped into a job eight hours a day to purchase the free time to do what I enjoy. That’s why i started the Fellowship of Acoustics. The fellowship of acoustics was founded by Rudi Bults, Guitarist and obsessed with tone and wood. The idea was offering real expertise when trading and selling the finest instruments in the world from our showroom in Bergentheim, Netherlands. Helping others find the right tools and enjoying an atmosphere that’s unhurried, honest and informative that’s my go. We are nothing like the "supermarket" style music stores, but specialize in string-things only. We are widely known for Flattop guitars but also sell electric, mandolins & banjo’s, amps, parts, and accessories. Our store has earned the reputation for being a great place to shop for the best products and service.
It is our hope that this new website - much more than a list of "gear" for sale - will serve as an example of our commitment to offering a more personal approach, a friendly atmosphere, and an ultimately more satisfying experience for our friends and customers.
If you have any questions just dial +31-523-232205 or e-mail My name is Rudi Bults, and I’m always here to help out. Wherever possible, we would recommend that you visit our store and experience our instruments and service first hand. However, because of our high standards you can be confident of ordering online from us. We hope you enjoy your visit to our site, and welcome your feedback.


We do speak English, Dutch and German! Feel free to call in any of these languages and ask your questions! Call 0031-523-232205




We LOVE Guitars, and buy and trade for most stringed instruments. But we also do consignment, make appraisals for insurance or put you on our watch list. Please check the Buying & Trading page for details.
The Fellowship of Acoustics BV
Kanaalweg oost 36
7691CE Bergentheim
To order online: go to
And choose your Guitar and purchase through the website.

Available methods of payment
# Paypal
# Credit Card (MasterCard/Visa/AmEx) only available for European Community and USA.
# Bank-Wire transfer

Call for Online Order+31(0)523-23-2205
our policy:
14 day money in return return warranty  Shipping cost, and Customs & import return costs -bothways- are buyers responsibility
1 year Guarantee on Used Guitars
5 years Guarantee on New guitars (or 'limited lifitime' if the Builder guarrantees such)

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