door Isaak Tirion ; J. Keyser get. on gesn.Covers Mongolia, Korea and portions of Russia, Iran, China and Japan.Relief shown by shading and pictorially.Electronic reproduction. Cambridge, Mass. : Harvard College Library Digital Imaging Group, 2009. (Open Collections Program at Harvard University. Islamic Heritage Project). Copy digitized: Map Coll (Pusey) : MAP-LC G7270 1732 .T5.