Mellow Yellow Museum-Quality Matte Archival PaperMellow Yellow Museum Quality Matte Archival Paper. This specialized paper uses a unique cow portrait and cow nose feature, with a deep, rich amber background providing unparalleled clarity and vibrancy. These features, combined with the museum grade archival quality, make Mellow Yellow the ideal choice for creating lasting works of art. This is a great one for your favorite frame. Printed in popular sizes. The print size includes the border.