Stamps, similar in size and appearance to regular postage stamps, affixed to stock certificates to indicate payment of a special tax imposed on financial transactions during the Civil War. Revenue stamps are a collectible in their own right.
stamps that are affixed to deeds (and, in some states, other documents affecting real estate) and that indicate the payment of the state's deed transfer (or other transfer) tax. Federal revenue stamps have not been used since 1968, but many states have substituted their own.
Similar to a postage stamp, a revenue stamp is a seal or piece of paper affixed to a deed that is required by the government. It is actually a form of taxation and is affixed when the deed is recorded.