Gabriel de Vallseca

    Gabriel de Vallseca was a Catalan cartographer of Mallorca. Three of his charts, done in 1439, 1447, and 1449 still exist. The one pictured on the stamp below is the one from 1439, preserved in the Museu Martim de Barcelona.

Nicolaus Jansz Visscher

     For nearly a century, the members of the Visscher family were important art dealers and map publishers in Amsterdam. The founder of the business, Claes Jansz Visscher (1587-1652) had premises near to those of Pieter van den Keere and Jodocus Hondius, whose pupil he may have been. His first atlas consisted of maps printed from plates bought from van den Keere and issued as they stood with some additions of his own, including historical scenes of battles and sieges for which he had a high reputation. Some maps bear the Latinized form of the family name: Piscator. After Visscher's death his son, Nicolaus Jansz Visscher (1618-1679), and grandson, Nicolaus Jansz Visscher (1649-1702), issued a considerable number of atlases. The widow of Nicholaes Visscher II carried on the business until it finally passed into the hands of Pieter Schenk. The date of the map would suggest that  the engraving of the map was done by the grandsonson.