How much are old postcards worth?
They can range from ten cents to five hundred dollars. It really depend how old it is. You could come to a specialist in postcards. They should be able to tell you a exact.
Many variables involved in pricing postcards: Is it a picture postcard? Is it postal stationary? Is it a special event card: Does it have a special cancellation on it? Is the picture of a identifiable site? How old is it? What stamp is on the card? Is it in mint condition? Has it been water stained or creased? You can purchase them anywhere from $1 to several hundred dollars depending on the factors above.
It depends on a few different factors: how old the cards are, what condition they are in, and what is portrayed on them. Some historical post-cards are very rare, while others are quite common. The harder-to-find the card is, and the more it is about a topic that collectors are interested in, the more money it might be worth. You may want to look online at places like eBay, where there are many collectible post-cards…