Revenue stamps are special adhesive labels used to indicate the payment of taxes or fees on certain documents and transactions. They are often affixed to legal papers, contracts, or financial documents to show that the required revenue has been paid to the government. These stamps can vary in design, denomination, and purpose, depending on the jurisdiction and the specific tax being collected. Common examples include stamps for property transfers, excise taxes, and court fees. Revenue stamps help ensure compliance with tax laws and provide a way for governments to collect necessary funds.