Maps: Collecting Antique Cartography from Ptolemy to the Railroad Age

Maps are printed or manuscript representations of geographic areas that have been produced, collected, and treasured since classical antiquity. Antique map collecting is a well-established field with dedicated dealers, auction houses, fairs, and scholarly societies worldwide. From elaborate 16th-century world maps on vellum to detailed 19th-century railroad surveys, maps offer collectors an intersection of art, science, history, and geography that few other categories can match.

Key Periods and Cartographers

• Ptolemaic maps (1477-1550): Maps based on Claudius Ptolemy's 2nd-century Geography, first printed in 1477; recognizable by their trapezoidal projections
• Age of Exploration (1500-1650): Ortelius, Mercator, De Jode, Blaeu, Hondius, and Speed; the golden age of ornamental cartography
• Dutch Golden Age (1600-1700): Blaeu, Janssonius, and De Wit produced the most decoratively elaborate atlas maps ever printed
• 18th century: Homann, Seutter, Bowen, Kitchin, Faden, and Des Barres; increasing scientific accuracy
• 19th century: Mitchell, Colton, Johnson, and Rand McNally; lithographed maps with bold hand-coloring; railroad and survey maps

What Makes a Map Valuable

The most important value factors are:

• Subject: Maps showing early depictions of America, the Pacific, polar regions, and other areas during periods of active exploration
• Rarity: Maps from small-edition publications or separately issued sheets
• Cartographer importance: Maps by major figures in cartographic history
• Decorative appeal: Elaborate cartouches, sea monsters, compass roses, and figure vignettes
• Age: Generally, older maps are more valuable, though important 19th-century maps can exceed mediocre 17th-century examples
• Original color: Contemporary hand-coloring adds significant value

Auction Price Ranges

Condition Factors

Map condition is assessed on paper quality, print quality, and integrity. Foxing, toning, tears, losses, staining, and creasing all reduce value proportionally to severity. The centerfold from atlas binding is expected and does not reduce value. Wide margins are preferred; maps trimmed into the printed border or neatline lose 20-40% of their value. Original versus modern hand-coloring is a critical distinction: modern coloring applied to uncolored prints should be disclosed. Professional paper conservation (archival tissue repairs, deacidification) is accepted. Maps mounted on canvas or linen (as was done historically for folding maps) are acceptable if the mounting is period-appropriate.

Collecting Tips

Begin by determining your collecting focus: geographic area, historical period, cartographer, or visual style. Maps removed from atlases are the most common and affordable type. Separately published maps (issued as individual sheets rather than bound in books) are rarer and generally more valuable. Develop relationships with established map dealers who guarantee authenticity. Major map fairs (the Miami, London, and Paris map fairs are among the largest) provide opportunities to examine maps in person and meet dealers. Learn to read the printing technique (engraving, lithography, woodcut) under magnification, as this helps with dating and authentication. Frame maps only with archival materials and UV-filtering glass to prevent fading. The Osher Map Library, Library of Congress Geography and Map Division, and British Library provide excellent online resources for research and comparison.