The vintage ones are black and white photography. There may be some indication on the back of the card about the type of photo paper used - this is often indicated by the stamp box, which will be visible if your postcard is unused.

How do you know if a postcard is valuable?

Rarity. As with all antique items, rarity brings up the value of postcards. If only a few of the cards were printed or only a small number have survived the ages, your card may be very valuable. However, rarity goes hand-in-hand with other characteristics; if only a single card was printed, that makes it rare.

Can you use old postcards?

If a postcard is copyright protected, it cannot be reproduced or used without permission. However, many vintage postcards are not copyright protected and are available in public domain – which means they can be reproduced and used freely by anyone.

What can I do with unused postcards?

How to sell old postcardsStep 1 - Store your postcards properly. Step 2 - Research the value of your cards. Step 3 - Visit vintage markets & postcard fairs. Step 4 - Trade with a postcard dealer. Step 5 - List your items on eBay. Step 6 – Offer postcards for sale at auction. Step 7 - Sell to an auction house outright.More items