The Catalan Atlas (1375) is the most important Catalan map of the medieval period. It was produced by the Majorcan cartographic school and is attributed to Cresques Abraham. The Catalan Atlas originally consisted of 6 vellum leaves folded down the middle painted in various colors including gold and silver. The leaves are now cut in half. Each half-leaf is mounted on one side of five wooden panels. The first half of the first leaf and the secon...