“Map of the World from the Best Authorities” is a common inscription on antique world maps from the 18th and 19th centuries, indicating the use of accurate and up-to-date sources by the cartographer. If you’re interested in obtaining such maps, consider exploring specialized antique map dealers, reputable auction houses, and online platforms like eBay. Specialty map stores, historical archives, and libraries may also have original maps or reproductions. Digital collections from institutions like the Library of Congress offer high-quality scans, while custom print services can create reproductions. Books on cartography may feature reproductions or descriptions. Keep in mind that these maps may not accurately represent modern geography and verify the authenticity and provenance of any map you acquire.