Coloured map of the world by Pierre Mortier based on an earlier map of the same name by Nicholas Sanson, first published in 1657. This double hemisphere map shows the world as then currently known with either ancient or mythical place names and showing California as an island. Inset bottom centre is a map of the ancient world. Blank verso. A superb example of this unusual map in excellent condition. 38.5 cm x 52 cm