A good place to start when it comes to determining the value of old postage stamps is to define what “old” really means.
Stamps have been produced since 1840, and stamp collecting has been a major hobby for almost as long. It is not difficult for a collector to find stamps from the nineteenth century, and many of these stamps are inexpensive.
If you have an old postage stamp still attached to an envelope, this can increase the value of the stamp tremendously. The value of old postage stamps can easily increase by 500% when they are attached to an envelope.
Collectors refer to these as covers.
As with all stamps, the value of old postage stamps is determined by supply, demand, and condition.
