This is a 1909 revenue issue from Mexico, denominated at 50 pesos. The stamp features the inscription “Control del Talon Año 1909” in green, with a bold serial number printed in black at the top. These fiscal stamps were used for patents, direct contributions, and guides, with the retained portion filed in the revenue office (Oficina Recaudadora). Such issues are highly collectible due to their limited administrative use and survival. The large denomination of 50 pesos suggests application in significant financial or commercial transactions, adding to its historical and philatelic importance.