This is a Mexican fiscal revenue stamp from 1909, issued for the purpose of controlling tax stubs (Control del Talon) related to patents, direct contributions, and official guides. Printed in blue with a bold serial number at the top, the design includes the denomination "10 Centavos" prominently on either side. These fiscal issues were not for postal use but were mandatory for government revenue collection, typically affixed to official documents and retained by the collecting office. Such items are significant for philatelists specializing in revenue stamps and Mexican fiscal history.