Probably early in MPC-II. Five fragments of a linear kotyle, four joined. The kotyle is preserved from the lip to near the foot. Exterior: a single horizontal line of glaze on the handle. At the top of the rim, a single worn horizontal line frames the series of vertical bars in the handle frieze. Some of these cross over into the first of the fifteen horizontal lines below. These lines cover only one-third of the body. The tall, slender rays do not quite touch the lowest of the lines. Interior: completely glazed, with no area of reserve near the lip. Glaze: reddish brown to dark brown, streaky in the rays and worn on the interior. Clay: fine, smooth, and hard. Munsell no. 10 YR 7/4 (very pale brown).

Found in the same area as Cor 21. Although similar, Cor 13 is more clumsily executed. The fact that the rays do not quite touch the horizontal lines and the lines cover only a third of the body suggests a date early in MPC-II (supra, "Kotylai with Linear Decoration," 13-14).