https://mymodernmet.com/14th-century-portolan-chart-alex-clausen/
Old Map from Estate Sale Turns Out to Be a Rare Portolan Chart
Nov 20, 2023 - After spotting an old map at an estate sale, Alex Clausen paid $239,000 for it. Made in the 14th century, its worth is now $7.5 million.
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https://www.ziereis-faksimiles.de/faksimiles/portolan-karte-cga5b
Portolan-Karte C.G.A.5.b - Ziereis Faksimiles
Bester Preis, Video und Bilder: "Portolan-Karte C.G.A.5.b" » Faksimile von Il Bulino, edizioni d'arte 📖 Jetzt bestellen ➨ ziereis-faksimiles.de!
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https://www.projectnerd.it/author/portolanm/page/657/
Marcello Portolan, Autore a Project Nerd - Pagina 657 di 660
Enjoy your passions!
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https://www.portolan-sdi.org/es/blog/building-portolan-trimet
Building Portolan: TriMet Mirror — Three hours from shapefiles to a live catalog · Portolan
Sep 16, 2026 - TriMet publishes eight geospatial datasets as plain files. Mirroring them into a Portolan catalog, with a custom-themed browser, took about three hours of work...
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