How to Spot an Authentic Antiquarian Map: A Collector’s Guide

At PortstewART Galleries, our passion for history doesn’t stop at art and cinema. We’re also proud to offer a large, curated selection of antiquarian maps of Ireland, the United Kingdom and beyond. These maps are windows into the world as it was once imagined, charted, and explored. They were handcrafted with painstaking care.

Our Managing Director serves as the Irish National Representative of the InternationaI Map Collectors’ Society (IMCoS ) and is a recognised expert in the field. We know that collecting antique maps is as much about curiosity and adventure as it is about draughtsmanship and authenticity.

So how can you tell if a map is truly antique? What should you look for before making a purchase? Whether you’re a seasoned collector or just beginning your journey, here’s what you need to ensure your next map is the real deal.

Why Authenticity Matters

Antiquarian maps are stunning works, but they’re also historical documents, each with its own story. An authentic map connects you to the explorers, engravers, and printers of centuries past. But as with any collectible, the market has more than its fair share of reproductions and clever fakes. Knowing how to spot the difference is essential for any collector who values history and investment.

Signs of Authenticity: What to Look For

1. Paper and Printing Techniques

Genuine antique maps were printed on handmade paper, often with visible chain lines or watermarks when held up to the light. The texture should feel different from modern, machine-made paper, sometimes slightly rough or uneven. Early maps were typically printed using woodblock printing or copperplate engraving, the latter resulting in fine, crisp lines and, in most cases, slight indentations where the plate pressed into the paper.

2. Age-Appropriate Wear

Look for signs of age: age toning (gentle browning), foxing (small brown spots), or minor edge wear. These are natural and expected in older maps. Be wary of maps that look suspiciously pristine or have artificially aged paper. Sometimes, forgers will try to “antique” a modern reproduction by staining or distressing it.

3. Hand Colouring

Many antique maps were coloured by hand after printing. Authentic hand colouring often shows slight irregularities, brush marks, or colour that doesn’t always stay perfectly within the lines. If the colours look too uniform or glossy, it may be a modern print or a later re-colouring.

4. Cartouche and Typography

Examine the map’s cartouche (the decorative title area) and lettering. Antique maps often feature elaborate, hand-drawn cartouches and period-appropriate fonts. Modern reproductions may use digital fonts or lack the fine detail of original engravings.

5. Provenance and Documentation

A reputable dealer should be able to provide information about the map’s provenance; its ownership history, publication details, and any previous sales. Certificates of authenticity, references to catalogues, or inclusion in well-known atlases can all help verify a map’s legitimacy.

Red Flags: What to Avoid

• Too Good to Be True: If a map’s price seems unusually low for its rarity or condition proceed with caution.

• Modern Paper or Printing: Smooth, bright white paper or pixelated lines are giveaways of a reproduction.

• Missing Plate Marks: Many engraved maps have a visible plate mark (an indentation around the image). Its absence can be a warning sign, though not all maps have them.

• Suspicious Sellers: Always buy from reputable dealers who specialise in antiquarian maps and are members of recognised societies like IMCoS.

  
  

The Joy of Collecting

Collecting antiquarian maps is about connecting with the past and discovering the artistry and imagination of earlier centuries. Each map is a unique artifact, reflecting the knowledge, ambitions, and even the misconceptions of its time. It may be that you wish to display a map of your home area, your heritage, or a place that holds a special connection.

At PortstewART Galleries, we’re passionate about helping map lovers and collectors find maps that are beautiful but also genuine pieces of history. Our expertise and commitment to authenticity mean you can buy with confidence, knowing you’re adding a true treasure to your collection.

Explore Our Collection

Our map collection is vast and always changing. We invite you to explore our collection at PortstewART Galleries. You can get a sense for the works we carry here or in person at 49 The Promenade, Portstewart, Northern Ireland, BT55 7AE.

If you are looking for a map of a particular region, please contact us, and we will be able to send photos of the maps we have available.

Curious about a map you own or want to learn more about collecting? Visit us or get in touch. Our team is always happy to share our passion and expertise!

Contact Us About Maps