Recording King Dirty Thirties RPH-05- Parlor Guitars. The Recording King RPH-05 is a vintage-inspired, solid spruce top parlor guitar with a matte sunburst finish, whitewood back/sides, rosewood fretboard with oversized dots, bone nut/saddle, C-shaped neck, 25.4" scale, and 1.6875" nut width, offering a classic blues/folk sound in a compact body with reliable modern construction.