This is a 1916 revenue (fiscal) stamp issued by the Province of Santa Fe, Argentina. Printed in olive-brown, it bears the inscription “Comisiones de Fomento – Provincia de Santa Fe – Control Impuestos”, signifying its use for tax or fiscal control purposes. The denomination is 10 pesos, prominently displayed at the center. A serial control number, here 87975, is printed at the top in black. The design includes ornate scrollwork and the provincial arms, marking it as part of Argentina’s early 20th-century fiscal issues. Such pieces are of interest to specialists in South American revenues and collectors of provincial fiscal history.