Nautical chart of the Mediterranean and Black Sea by Gabriel de Vallseca - 1447

This portolan map of the Mediterranean and Black Sea was drawn on a single velum leaf. The date, 1447, and the signature of the artist, Gabriel de Vallseca, are located on the neck of the animal which provided its skin. Vallseca was a representative of the Catalan cartographic school that produced many ornamental nautical charts from the 14th century onwards. The area depicted is closed around the Mediterranean. The coastline is finely drawn from Gibraltar to Syria, and nine cities from the West and East are depicted as bird's-eye views.

A map kept at the French national library BnF (Bibliothèque nationale de France), Maps and Plans Department, shelf mark number GE C-4607 (RES)
View this document in the digital Gallica library:
https://gallica.bnf.fr/ark:/12148/btv1b53064893j/f1.item.zoom