980569 A portion of the tablet of the cross, Palenque (b/w photo) by American Photographer (19th century) (after); Private Collection; (add.info.: A portion of the tablet of the cross, Palenque. Photographed from a plaster cast. Illustration for an article on Mayan Calendar Systems by Cyrus Thomas. From the Nineteenth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1897-98 By J W Powell, Director. In Two Parts - Part 2 (Washington, Government Printing Office, 1900).); Look and Learn / Elgar Collection; American, out of copyright.