Chromolithography is a multi-color lithographic print process that was popular in the 19th century. Often used for large-scale, commercial printing, the processed involved using a series of stone matrixes (sometimes up to 20 or more) that were inked in multiple colors and printed in registered layers on sheets of paper. The chromolithograph titles listed below link to fuller bibliographic information in the Library of Congress Online Catalog. Links to additional online content are included when available.