Abstract: A flat sheet annular ring has a first exterior circular perimeter and a concentric interior circular perimeter. The annular ring has the 360 circular degree compass scale indicia disposed thereon, at least adjacent to the ring interior circular perimeter, with appropriate compass one degree (1.degree.) intervals. A single flat sheet circular inner disc, having a second exterior perimeter, is disposed inside the interior circular perimeter of the ring, having a snug rotatable fit in the ring. The single disc has at least one set of multiple narrow width linear parallel slots disposed through the thickness of the disc. The at least one set of multiple parallel slots are disposed symmetrically about the center of the single inner disc. A center aperture marks the disc center, sized to accept an indicia marker tip.