On Christmas Day 1907 Aarón Félix Martín de Anchorena (1877-1965) and Jorge Alejandro Newbery (1875-1914) inflated “El Pampero” with cooking gas in Buenas Aires, Argentina, rose to 2000 feet altitude and drifted for two hours across the Río de la Plata to land at a ranch about 30 miles away in Conchillas, Uruguay. This was the first flight across the Rio de la Plata.
     Aaron de Anchorena (1877-1965) is known as the Father of Argentine Aeronautics. He appeared in 1968 on a stamp issued by Argentina to mark the 22nd Aeronautics and Space Week (868). He and Jorge Newbery, among others, founded the “Aero Club Argentino” in 1908. Newbery was honored on a stamp issued by Argentina in 1964 (759).
     The balloon, “Pampero,” was named for the cool Pampero wind, blowing on the flat plains of Patagonia and the Pampas after a cold front.

     Two people Jorge Newbery and Aarón made the flight across the Río de la Plata in 1907 although the picture on the stamp shows only one.