Iseman Guitars and Instruments, based out of Honolulu specializes in luthier-built high quality Koa Weissenborn Guitars. They also build other instruments including an OM/000 Style Guitar and the Ukulele. They have access to 'fallen' and aged Big Island Hawaiian Koa wood that is not only very high in grade, but handpicked for instruments.. All of Iseman's instruments are handmade/handcarved down to the tiniest detail.