How to Date a Vintage Postcard

Dating a postcard is usually a process of narrowing the range rather than finding one exact year. The strongest clues are often on the back, but the front image, paper, printing, and postal markings can all help.

Start with the back

Early postcards often have an undivided back, meaning the message was expected to go on the picture side and the address filled the reverse. In the United States, divided backs became common after March 1907, when postal rules allowed a message and address to share the back.

The back can also reveal the publisher, series number, stamp box, or wording such as Post Card, Carte Postale, or Private Mailing Card. Those details help place a card inside a broad production period.

Check the image and printing

Real photo postcards are actual photographic prints on postcard stock. They often show small towns, streets, people, occupational scenes, disasters, parades, and other local subjects. Printed cards may use lithography, halftone printing, linen texture, chrome color printing, or other commercial methods.

Common broad eras include:

• Undivided back postcards, usually before 1907 in the United States.
• Divided back cards, especially from the postcard collecting boom of about 1907 to 1915.
• White border cards, often from the late 1910s through the 1920s.
• Linen postcards, commonly from the 1930s into the 1940s.
• Chrome postcards, common after World War II.

Use postal evidence carefully

A postmark gives a latest possible date for that card's use, not always the printing date. A card printed in 1910 could have been mailed years later. An unused card may still be dated by format, publisher, subject, and production style.

Combine clues

The best estimate comes from comparing multiple signals. A divided back, a 1912 postmark, and a pre-World War I street scene all point in the same direction. If the back, printing, and subject disagree, write the date range more conservatively.