As estate sales of the über-wealthy go, the Ann and Gordon Getty Collection sell-off at Christie’s last year was a major success. Across 2,300 sold lots, it netted $200 million for charity, set a ...

The rare 14th-century portolan chart is worth $7.5 million. Robert Gauthier / Los Angeles Times / Getty Images Last fall, Christie’s auctioned off a “highly unusual” nautical map as part of an estate ...

Alex Clausen is a map dealer. And although that designation may not, at first read, exude adventure and romance, Clausen really is a modern-day treasure hunter. He doesn’t sail the seas in search of ...

WASHINGTON — John Hessler, mathematical wizard and the senior cartographic librarian at the Library of Congress, slipped into the locked underground vaults of the library one morning last week.

Teledyne Geospatial has launched the CARIS AutoChart, a nautical chart production solution. Traditionally, the production of nautical paper charts has been labor-intensive and time-consuming. It often ...