This striking 1915 provincial revenue stamp from Santa Fe, Argentina, is denominated at 10 centavos and printed in deep violet. The design features the provincial emblem with crossed spears and laurel branches, accompanied by bold inscriptions for "CONTROL DELTALON." The large serial number at the top adds to its official character and uniqueness, as each piece was individually numbered. Issued for fiscal purposes under the Comisión de Fomento, it represents an important aspect of Argentina’s provincial revenue history. A desirable addition for collectors of South American revenues and early 20th-century fiscal issues.