Custom ‘Reissue’ Martin 5K Ukulele for sale. Absolutely wonderful Martin 5K Soprano Ukulele. A gorgeous reissue of the 1920’s models with all the bells and whistles of the original. Hawaiian Koa wood face, back and sides with mahogany wood neck. A beautiful musicians grade Ebony wood fretboard and paua shell inlay on soundboard and back of ukulele. Matching diamond cut paua shell position markers and off-white celluloid binding on top, back and around fretboard. Button style tuners and much more.