Information provided by American Southwest Virtual Museum:

Cliff Polychrome is a type of Roosevelt Red Ware very similar to Gila Polychrome, but differentiated by the presence of two interior design fields separated by a banding line.  Cliff Polychrome has a distribution from stretching from Homol’ovi II, near Winslow Arizona to Casas Grandes, Chihuahua, Mexico, and from the Phoenix Basin, Arizona to Alamogordo, New Mexico, including the Upper Gila Valley. (Meghann M. Vance 2023, American Southwest Virtual Museum).

Archeological Culture: Salado

Date Range: A.D. 1350-1450.

Construction: By coiling.

Firing: In an oxidizing atmosphere.

Core Color: Gray to black, tan to brick-red.

Temper: Moderately abundant fine water-worn sand.

Surface Finish: slipped and polished, occasionally painted (exterior); polished, slipped, and painted (interior).

Surface Color: Uniformly red exteriors, occasionally with areas of white slip and black paint; white interiors painted with black designs.

Forms: Recurved bowls (predominate), semi-incurved and semi-flaring hemispherical bowls.

Decoration:
    Paint Color: Black on white and/or red slip.
    Pigments: Carbon, hematite, and kaolin; organic paint is more common for black, although occasionally mineral paint was used.
    Design: The interior surface of all bowls are white; geometric decorations, bold and free; decorative styles unnamed; solid or hachured stripes, steps, keys, squares, triangles, scrolls with scalloped or serrated edges.

Comparisons: Distinguished from Gila Polychrome by the presence of dual interior design fields (one at the rim and one on the bottom and walls) separated by a thick banding line. Ninemile Polychrome is also similar, but is slipped red on the interior below the banded field of decoration, and usually has Gila or Tonto exterior decoration. Pinto Polychrome lacks the banding line and upper field design.

Information from Lyons and Clark (2012:22)

"recurved bowls only; interior: two black-on-white design fields (one at rim and one at bowl) separated by a banding line, exterior: slipped red."

Information Provided by Dean Wilson 2014 - Southwest Ceramic Typology Project:

Cliff Polychrome was named by Harlow (1968) and defined by Lyons (2004). This type refers to Salado Polychrome forms exhibiting characteristics similar to those previously described for Gila Polychrome, but with recurved bowls and two decorative fields (Lyons 2004). One of these decorative fields is above the banding line and the other below. Associated dates seem to indicate that pottery with this combination of characteristics were introduced after A.D. 1350, and their overall frequency increased through time. Lyons (2004) argues that the recognition of Cliff Polychrome as a type facilitates the identification of some the latest Salado components in the southern Southwest particular those in the eastern portion of this region. Pottery assigned to this type are largely limited to bowl rim sherds for which the characteristics noted could be identified. Some sherds that may be derived from Cliff Polychrome vessels, but do not contain portions of the vessel with the traits used to recognize this type and may be assigned to Gila Polychrome.