Nielsen Bainbridge Valencia Pewter Finish 16"x20" Frame: The Valencia frame blends classical ornamentation which is perfect for both black & white and color photography. Nielsen's Valencia frame features UV Glass, an Artcare Archival Wheat Mat, Artcare Archival Mountboard and vinyl coated backing board with hanging hardware. This 16x20 (glass dimension) frame has a mat opening for an 11x14 image.