East Indian Rosewood back and sides with Sitka Spruce top. Fishman Aura A+ pickup with vintage samples. Ivoroid body binding and Herringbone Purfling. Corian Nut with a Mycarta saddle. 1 3/4" nut width. Sound patches for the pickup in this OM-28 were created using a vintage 1934 000-28 played through various vintage and boutique microphones.