Advertisement for models of "Exact proportions of the Great Pyramid Coffer, with educational models of ocular demonstrations", by Joseph Jopling Printed advertisement advertising models "of various sizes, and of great variety of material" and geometrical illustrations, sold by the author at his home address, including a note detailing the proposed content on the coffer in the King [pharaoh Khufu]]'s Chamber of the Great Pyramid [of Giza, Egypt], the proportions of the Parthenon, the Mausoleum of Mausolus. Enclosures from the correspondence between Joseph Jopling and Sir John Herschel of March 1860, removed from the letter HS/10/417. 1860