Do cancelled stamps have any value?

Cancelled stamps do have value but it is usually far less than stamps without cancellation marks on them. The value attached to a cancelled stamp will depend on the stamp’s rarity and desirability for collecting. Generally, the heavier the cancellation mark, the lower the stamp’s value and it will get a "poor" grade. However, if the stamp is rare or the cancellation mark is a special one, perhaps a commemorative or historic cancellation mark, then the stamp may still carry a high value. Many people begin stamp collecting only with cancelled stamps because they’re easy and cheap to obtain and a collection of such stamps can be just as beautiful as uncancelled ones.