Revolutionary Calavera Size:70×100 cm the Library of Congress's collection

the Library of Congress's collection of more than 900 is the largest

single-celled organisms that build impossibly intricate skeletons from silica — rings

Source: Wikipedia

Title: Connie Rodd - Preventive Maintenance

Date: 1959

Revolutionary Calavera Size:70×100 cm the Library of Congress's collectionTitle: Revolutionary Calavera Creator: Jos Guadalupe Posada Date: c. 1910 Place of origin: Mexico Jos Guadalupe Posada (18521913) was a Mexican artist and printmaker who is considered one of the most influential figures in Mexican art at the turn of the twentieth century. His body of work numbered at least sixteen hundred printed images, with some claiming he made as many as twenty thousand prints during his career. Most of his prints took the form of