A very RARE and beautiful and interesting book illustrated by Christian Karl Josias Bunsen..."Die Basiliken des Christlichen Roms. Kupfertafeln und Erklärung. (The Basilicas of Christian Rome. Copperplate engravings and explanation)... published around 1840....elephant folio!!!! Externally very good clean condition, inside complete with 50 plates in overall very good condition, some stains and spots especially around margins. Very very RARE and beautiful!!!!!!